Uhh... wha?
Well, I think if the game is good, porting should be considered as a viable option. EA does not have a good reputation in considering with their past reliablity, but perhaps if they DO offer capable mod tools for 2142, then porting could be considered. Recall that the engine for 2142 is still very similar, if not the exact same as that of Bf2. The only thing that would have to be done would be to make a few alterations, perhaps animations to fit a new physics engine. Who knows, perhaps EA will even be great sports and give all the mods "Porting tools" with such similar engines between the two games, allowing for the mods to easily get going on 2142, with all the stuff they already have easily over.
Of course, this is all hoping EA not only comes through, but goes beyond the call.