Actor Stephen Lang recently commented in an interview with MTV that “anything is possible” regarding reprising his role in the upcoming Avatar sequels.
Several months earlier, Sigourney Weaver mentioned the possibility that Grace Augustine might be making a return to a future Avatar sequel. Her character was assimilated into the Tree of Souls and with Eywa in the events of Avatar.
If Colonel Quaritch is making a return to Pandora, it begs the question of how? Cloning? Assimilation into Eywa? Or perhaps like Jake Sully, the Colonel has a twin brother of his own.
Until more details are released, the fires of speculation will no doubt be running hot among the Avatar Nation team and the rest of the Avatar fandom.