There are rumors... I doubt it would be any special edition other than Livestrong, though. Plenty of watches have had black and yellow versions (Holeshot, Minute Machine, Detonator), but the only one that is a special editions is the Time Bomb II Livestrong Edition. I doubt they'd give someone else a black/yellow edition. Should be awesome though!
There is a yellow gearbox coming out, but it's just a limited edition similar to the yellow/black minute machine. I think there may be a yellow 12 gauge also. Anyhow, I've seen pics but don't have any to post.