The Forsworn don't care about anything beyond the Reach, unfortunately.
I am planning to try and include multiple Jarl options for each town- in the interest of quest compatibility, you can pick the Imperial Jarl or Stormcloak Jarl (so, for example, you can keep Balgruuf in his position), a third option for some towns (an example of this would be allying with the Forsworn and putting Madanach or some other person in charge, thus making the Forsworn 'friendly' with your faction but really, REALLY angering the Nords across Skyrim, and hitting the player with pretty substantial penalties everywhere else). The 'third options' will have very tangible effects upon the game- if the player wants to place a crusader in charge of Riften to clean up the blatant corruption there, increasing tax income from the city, he will have to meet it with assassination attempts and such from the powers that be.
Then, last, there's the Fourth Option, which is placing one of your Followers in charge of the city. For example, placing Kharjo as Jarl of Windhelm.
Grelod the Kind for Jarl of Riften for the Lulz! XD
But on a more serious note, I had an idea 5th and 6th for that too. Both of which have advantages and disadvantages.
5th idea: The "Republik" setup. If you so choose, you could make your new "dragonborn empire" into a "Dragonborn RepubliK", basically turning Skyrim from a feudal state into a more modern democracy, with an election in each hold happening every 4 years (first one to start right after your total victory in skyrim).
Upsides: Your movement will draw a lot more popularity from the normal folks, and increase their opinion of you. Which might mean more/harder fighting soldiers for your cause. Also not sure if you're going to include any monentary upkeep options, but this is also a lot cheaper and requires a lot less maintenance and micromanagement than the normal 4.
Downsides: Obviously the nobility doesn't like the idea of the local peasantry and common rabble having any sort of power, so less support from them. Also, you might find that after the holds are all taken you might find that a few of the jarls you've kept/replaced are kicked out and replaced by someone else, completely beyond your power. This also means that you as dragonborne has a bit less direct power over the mundane decision making of each hold.
Also this idea of equal voting power for everyone is NOT going to put you on very friendly terms with the Thalmor, regardless of weither you ban talos worship or not (which actually is one of those micromanagement things you won't have any control over anyway)
6th Idea: Direct Democracy setup (Aka the PseudoSocialist option): Like Idea #5, however rather than any Jarls at all, all hold decisions are basically done democratically (as opposed to simply electing a jarl who makes decisions).
Upsides are No micromanagement and the people REALLY love you for it. Even
more so than #5. Oh and you can loot the palaces.
Downsides are of course you don't get to choose any Jarls (Again, DIrect Democracy). And any Jarls of any cities you take over get kicked out BY DEFAULT (No keeping Balgruff for example). And you get NO decision making powers whatsoever save for a select few. Oh and the nobility will REALLY hate you.
And since the majority of people are probably going to vote for Talos Worship reinstated, that also means the Thalmor are enemies as well. (And the fact that your new system is basically the antithesis of the Thalmor's Fascism.)
Essentially, Its a case of: What kind of a new skyrim are you going to build? Are you going to create a cruel dictatorship where you rule with an iron fist and the jarls are all your puppets, will you attempt to be some kind of benevolent dictator, will you leave the jarl system as it's been traditionally established, or will you build a new system altogether, where the people are in charge of their own destiny?
I fully support this idea.
Though I would think that there should be a couple different rebellion "themes". What I mean by that is, is being able to choose a side that you'll take over and using that sides theme as the basis for your own. IE, picking the Blades will set up what OP suggested. Picking the Stormcloaks, a more Nordic type of rebellion akin to to the normal Stormcloak rebellion. Only under your banner. Picking the Legion, you'll lead the Legion to greater heights. Or, you can pick no side and create a rebellion in whatever image you prefer.
In this way, you can have a rebellion that goes perfectly with virtually any character, even with mods.
I can expand on this if I need to, as I have a lot of ideas swimming around upstairs now that I'm thinking about this.
Hmm this gave me an idea for possible customization. Perhaps you could have 3 (or more, basically one for each type of unit) Mannequins in sky haven temple, as well as a weapon rack next to each mannequin? They function similarly to the normal mannequins, next to them but instead of just just storing your clothes, they become a template for what your soldiers will wear and equip themselves with?
One will be for normal troops, one will be for officers, and one will be for support and/or non-combat units. Example: By default these will all have blades outfits on them (meaning all your soldiers will be wearing stock blades armor.) If however you instead take the blades armor off and replace it with Stormcloak Armor, All your blades will be wearing stormcloak armor. If you stick Ancient nord armor on the Officer mannequin, the'll have ancient nord armor instead of the normal blades armor. And if you stick the non-combat/support unit one with a restroration master robe on them.
Basically your soldiers will wear a copy of whatever is equipped by the mannequins. If nothings on the mannequins, they'll have blades armor by default.
Of course to prevent players from overpowering their units (by say simply equipping each mannequin with a ridiculously overenchanted set of daedric armor (actually I think enchanted armors should be banned anyways) and winding up with a god-like Daedric power armor army,) there should be something like a "Total Value Allowance" for each. That is, the total value of all the armor you put on the mannequin cannot exceed more than X amount of gold. Like for example for regular soldiers it should be quite low (like around 500-1000 gold total.) With Officers it would be higher (like say 2000-5000 gold total) and support units would be something in between.
Oh and no unique items either. No equipping everyone with a saviors hide or shield breaker for example.
Another idea pertaining to this is that these allowances start off very low, and then whenever you conquer a hold these allowances go up.
The Weapon racks next to each mannequin would work in much the same way. Whatever is on the rack is what weapons your soldiers get to choose from for loadouts, and they have total cost allowances for each, etc. And what each soldier has for their loadout is selected randomly from the rack. There are room for 2 Two handed weapons, 4 one handed weapons, and 2 Ranged weapons (bow and arrow, OR staff).
Example: if you have 1 iron hammer, 1 steel battleaxe, 1 elven sword 1 katana 1 dwemer war axe 1 glass mace and 1 steel bow on the racks next to the normal soldier mannequin, your soldiers will spawn with either an iron warhammer, a steel battleaxe, an elven sword, a katana, a dwemer war axe, or a glass mace. Whether or not the mannequin has a shield on it will be taken into account as well: if a soldier gets a 1 handed weapon and there's a branded iron shield on the mannequin, the'll have a branded iron shield and a one handed weapon. If there's no shield they'll get another 1 handed weapon and they'll duel wield (example if you take the shield off soldiers might now have a elven sword in one hand and a dwemer war axe in another.) There is also a 50% chance they'll have a steel bow as well, though if you replace that with a staff of fireballs the ones that had bows will be using that instead. If you replace the warhammer with an ebony greatsword, all the soldiers that had iron warhammers (but not any of the other weapons) will instead have ebony greatswords.
And again, no unique weapons. (No giving everybody volendrung or a wabbajack for example.)
I'd give everybody
lightMagickasabers XD