The Elder Scrolls 5 Skyrim: Hearthfire (Not my idea but i do like it, Also Added Some Stuff)
Location: Skyrim And Orisnium
Storyline: Choose Between Deadra or The People of Skyrim
New Cities: Orsisnium City (And Whatever Bethesda Wants)
New Enemies: Scamp/ New Dremora / Deadric Princes/ Werebear / Armored Werebear
New Armour Peices: Orcish Leather Armor/ Orcish Dark Armor / Orcish War Armor / Dremora Light Armor
New Weapons : Deadric and Orcish Spear/
New Dungeons: Towers of the Demora/ And Whatever
More Stormcloak/Imperial War Quests
Summary of the War Quests: Dremora have Been Opening a Gate to Orisnium/ Walking to Skyrim and Killing Everyone in their Path. An Imperial/Stormcloak Scout Runs up To The Imperial Or Stormcloak Leader After A Courier brings a note to you saying "(Whatever your rank is for them) You need to come i have a Special task for you.
And then your War With the Deadra Begin/ You Can Keep Doing these Quest (Much Similar to the Vampires in Dawnguard) (Go here and Kill him) (And Things Like Kidnapping your Wife)
Main Plot Summary: A Deadric Lord has Been Bringing the Dremora Army Back to Tamriel. After you hear This from (A Charachter Bethesda Makes) Or. Similar to the Guy From Knights of the Nine. You must Go to Orsnium Speak to the Orcs. Gather Army Full of Orcs to Launch an Assault to the Oblivion Gate/ Keep Fighting Dremora And Kill the Leader of the Dremora
Or Whatever Bethesda Makes i'm not Good at making Stuff

Oh Also Locations : Ashpit or Somewhere