Recently, the devs at Blizzard did some Q&A via twitter. Here are some responses from the non-related or off-topic questions:

Q. Will the dungeon finder get upgraded to possibly track or detect players who abuse the kick system and/or ninjaing?

A. We are toying around with this idea. It's hard to let you use it when needed without letting others abuse it.

Q. Are there any plans to allow cross-realm raiding?

A. If we can solve the problems with it, we might give it a try. One of the problems is getting the group back together, especially on the longer instances. Loot drama and stuff like that is always a problem. There is also the ongoing concern about the concept of your realm having less of a sense of community.

Q. What happened to the zone-wide buff in Icecrown Citadel? Did you trash that idea or is it coming in the near future before Cataclysm?

A. This is still in the works, we just are not ready for it quite yet. The buff will scale up over time as well.