I'm bored so I made a list up upcoming things after wotlk releases, thanks to schwick from shadowsong eu. Its his list this is just a complied version, all his stuff is backed up by blue posts/interviews.
Of course this is not set in stone.
- A secret surprise instance (coming in 3.2)
- Icecrown Citadel (might come in 3.3)
- Ulduar (coming in 3.1)
- Pick the size of a certain battleground (20 vs 20 for example)
- Guild battlegrounds (join battlegrounds as guilds versus other guilds and introduce ratings/ranks like Arena)
- Reward system will be tweaked.
- Queue-up anywhere in the game.
- Level-up in battlegrounds.
- Arena PvP spectator feature
- In content patch 3.1 mounts will finally work in water.
- An itemrack/Outfitter like feature is still being considered. Basically it will allow you to easily swap gear compilations.
- Yes, there are plans that PvP will be added to the LFG-system
- Yes, there are plans to introduce cross-server chat
- A dance-studio is a place where you can learn and create new dances for your character.!!!!!!!!!!!!!!
- Yes, Blizzard is looking into personal-tabards.
- Yes, account-based achievements are on their way
Also heres a link to the mysterious next expansion possibly shows on a map.
http://www.wowinsider.com/2008/11/07...inent-spotted/