Just my two cents on this whole revival thing. The way i see it, TLG has already tried to revive it, I mean we had mars mission as a revival of classic space/mission to mars, space police 3, alien conquest is pretty obviously a revival of UFO as is galaxy squad of Insectiods, but the thing is, it flopped. I mean sure, mars mission was reasonably successful, at least in my country. The issue is that TLG tried to takes things too far into the whole 'revival/renewal' phase and, while mars mission was kind of cool in a way, the others just came off as bland and somewhat poorly executed spin offs.
and thats the thing, its all just rehashes of already existing ideas, although there are some new twists to it like the fact each is now duel faction, a lot of it is just not original thinking.