If they do anything "massively online," it is likely to be like that "massively single player online" thing in Spore, where you play against your PC but it collects input chunks from other players who participate in the posting system.
In Spore, your game universe can include worlds and species that other players upload. I'd be almost suprised if you can't post and download Societies components the same way.
Other than Stardock's NotMoM2, Spore and possibly this Societies thing look like the only likely distractions from GC2 for me.