An MMO that feels like a real world.
NPCs that wander constantly, have speech and conversations with each other, some offer quests, others don't, no exclamation point to let you know if they have a quest.
Real destruction physics, and world PVP with siege weapons and the like.
Cities that can be destroyed, or damaged, buildings have to be built back up if you want to use them again, and the NPC is (always) gone with the building.
Great combat that feels part RPG, part action. Kind of like Guild Wars' combat - fast paced, with some time to wait for some stuff.
A story throughout the game, changes depending on how the world PVP is going. ie - City X gets destroyed, and the main story required you to go through City X. Must either wait or help retake and rebuild City X in order to progress, becomes a new quest line.
A huge, single world. One server, tons of players. No instancing, 'cept dungeons, of course.
I donno, sounds good to me.