Tigole is providing us with noteworthy blue posts on 2.4, future guild bank improvements and WotLK.
Guild Banks: Guild master might be able to set prices for items (src)
We've been exploring ideas about letting guild masters set prices for items from the guild bank. We hope to get some cool guild bank improvements in over time.
Patch 2.4: Battlemasters and collision (src)
In 2.4, the Battlemasters are standing on platforms with collision around them.
We're also working on a better solution for Wrath of the Lich King.
WotLK: Plans to incorporate new titles (src)
We want titles to be meaningful in WoW and not commonplace. Our goal is to release more titles sparingly, so that the titles carry weight with other players. We do have a lot of plans for some new systems incoporating titles in Wrath of the Lich King. More information will be coming out on that soon.
Also, we feel like we have to be careful about rewarding people for behavior that might not be the best game experience. As much as everyone loves killing Murlocs, I feel like I have a moral and social responsibility not to encourage you to grind out 10,000 Murloc kills.
World PvP: Lake Wintergrasp and server wide buff (src)
Why can't you make it so that cities like Halaa (well, pick another one, not Halaa) give a server wide buff to players, if it is controlled by your faction?
That would provide an incentive for players to capture and hold it. For example, a 3% increase in damage while the city is held or something.
Just having zone specific buffs was a good start, but it needs to be more epic than that.
That's a cool idea. Maybe we'll do something like that with Lake Wintergrasp.