I want personality.
I want uniqueness.
I want you to look at the things people have put effort into to. Do you know what categories of things people make mods for? It's like this:
*Bug fixes and "minor annoyances" fixes
*Cosmetic "make it look pretty" mods
*"System" depth mods-- mods like MMM that make combat varied and deep, that make things unpredictable and new, and that add more replay value. Combat, Alchemy, Leveling, Quests, new landmass, "overhauls" of loot systems, mods that say "we like this, but we want MORE."
I am concerned about your choice of dragons here. You guys have a lot of unique lore to use, so please use it!. I trust you to do it well, but shun the cliche high fantasy, if you can.
I want you to put love into this game, more than any one attribute. I want you to take your time and do it right. Delay it if you have to; don't be afraid that we're going to lose interest over a month or two. I wish I could hug you people and show you how much fun I've had playing Morrowind for eight years straight. Mods have kept it alive with depth. Please go look in the Morrowind Mods section and the Oblivion Mods section to see what people thought needed changing in those games.
Wishy-washy, I know. But I don't even care what particulars are used, just make it well loved and well made.
*EDIT: Also, please make a good UI, I mean, my god, the Oblivion UI was awful. There weren't 18 mods to fix it for nothing!