Do you want it to be huge with like 12 zones, or small but packed with content? DO you want there to be another wintergrasp type zone? Do you want there to be no dailys or a ton? How do you want the next expansions continent to look?
I want a wintergrasp type zone again with no flying aloud, and the battle is always going. While your factions holds the keep or whatever, you get buffs in the whole continent, but you could lose the keep at any moment. Constant action.
I want 9+ zones packed with about as much content as Pandaria with about half as many dailys and each zone having battlefield barrens style stuff going on.
I want lots of rares with epic rewards, world bosses to stay, and lots of 5 man rares that take 4+ people to take down like the warbringers with good loot and rewards for non raiders.
I want dungeons and raids to be represented in the outdoors like temple of the jade serpent with questing taking place there.
I want a cool villain thats in my face almost as much as the lich king was.
I want jumping and exploration challenges/puzzles in the world for vanity items/titles/achievements. They could place jump pads and speed boosts and have them littered around the continent.
I want some minor pvp objectives in some zones like in hellfire peninsula.