I have been hearing from a few sources that the BlackBerry Bold 9800 would be coming around June to AT&T. Justin over @BerryFix just added that he also heard from a trusted source that it will be coming to AT&T in June with a 3 month exclusivity.
RIM usually launches new devices around the same time every year with a key QWERTY launch coming in the June-August time frame every year. I have also been hearing that the WebKit browser is on schedule to be ready for the same time frame so things are starting to add up. Here is hoping that AT&T does not screw up this Bold launch like they did for the 9000 and the delay they had on the 9700.