So, what if you aren't the Dragonborn at all? Instead, you're the man behind the scenes. What the Hero of Kvatch was to Martin Septim. You would meet the nameless Dragonborn in Bleak Falls Barrow, and watch him learn his first word of power. You would follow him around - only while pursuing the "main" quest - and help him obtain dragon souls and words, as well as complete the games' major objectives.
As a non-dragonborn player, the only thing you'd actually lose is the ability to use Shouts, which are hardly necessary. As a rule they generally feel either useless or "cheap" anyway, in my opinion. But instead you gain a blank slate. Freedom from what being the mighty Dragonborn should mean about who you are and what you should be doing within the world of Skyrim.
I've tried to consider the plausibility of this from the standpoint of quest editing and dialogue. It seems like it should be possible to make most of the dialogue that's normally directed at the PC relevant to the main quest play automatically while the Dragonborn NPC stands around listening and you hang around the other side of the room. Killing dragons without the Dragonborn around might be a bit hard to reconcile with lore (and with dragon death animations) so I also had it in my head that if you encountered a dragon, the Dragonborn should soon fortuitously appear to help you kill it and take its' soul afterwards. I'm sure there would be some sticking points but I imagine some of the very competent modders out there could make this work functionally.
What I'm not really sure of is whether there would be interest enough on the part of mod-makers and users to make it happen. What do you all think? Anyone out there who thinks this would be worth doing, possible, and within your ability?
I would love to hear any thoughts anyone may have on this in concept. Share your enthusiasm if you like it! The more comments this generates the more likely it is to get attention from someone who may be willing and able to take it up as a project.
Thanks!