What campaign world is next? Someone has to know! Tell me!
Do we know when they are going to annouce it?
I'll bet anyone a change of avatar that it's announced at Gencon.
WotC is going to try hard to not repeat the mistakes of the past and have Campaign settings cannibalize each others audiences. So far, FR is very different in feel from Eberron which are very different from DS. The next campaign setting will also have to be fairly different.
What with the popularity of modern-day magic stuff (Dresden Files, etc), perhaps something set in modern times?