We already know pretty much there is about Morrowind, Cyrodiil and Skyrim (don't know the older games that well). So, with the new provinces that are being introduced, we will get lots of new lore. Summerset Isles is almost a complete mystery!

What could it be? What do you want to see?

I personally would like to see new assassin and thieves guilds, new living gods,...

I cant wait to lean a bit more about the lands we've never really seen. I dont think we'll learn much about mainland Summerst, it wont be in at release, and I dont think I ever want to see it in game (not even in single player TES)

Now. about "new living gods" I'd really rather not.

Summerset won't be in?!

That's hillarious, so the Dominion is nothing but a bunch 'o homeless pretty looking Elves?

Most privinces will not be complete on release. Cyrodiil is missing anvil black marsh only has the top and yeah the elves are homeless.