They're probably going to do the same thing they did with the sony ericsson x10. Last year when Sony (SE at the time) released 2.1 in November, it took AT&T until the following spring to release the update to customers. When they release Gingerbread for the x10, AT&T wasn't even going to offer that upgrade. I didn't want to wait for them to do the upgrade so I flashed my x10 to the generic LAM firmware and got 2.1 OTA.

As soon as I find a good ROM for the i777 based off the unlocked SGS2 that got ICS a couple of weeks ago I'm flashing mine. I can't stand waiting on AT&T to catch up to everyone else.