I would be worried that this game will bog down in tedious micro-management. It already requires a *high* level of management - any more is questionable.... If it is just a matter of new facilities that improve, I would be open to it. If it meant planets would *have* to have these new facilities, I would not... The problem with Civ and Alpha Centauri is they require so much building that that is 90% of the game... I like the fact that this game seems nicely balanced between a building/management sim and warfare/combat.
Just my 2 cents
Jason2