my bet is that they are gonna mutate to an entirely different lifeform
but seriously even with exopacks, food and all that... I don't think they are gonna exactly live in the na'vi village, whatever that is in the sequel. Pandora is dangerous for such a little adapted creature as humans, only other possibility is that na'vi would inhabit the hell's gate, which seems unlikely though. It seems wrong that they would live separatelly, Norm and Max in Hell's Gate and na'vi would just drop by for a visit or something lol.