Well, Galciv2 is a single player game, so that's not going to happen. Stardock has plenty to do without diverting resources to MP.
That being said, there was a game in the early days of the BBS called Tradewars. It was a turn based game where a player would get so many turns per day. That sort of style might work in a Galciv2 type game. The AI would take over for the player if he or she wasn't online and would play some weak, but standard tactics. The game had economy, technology, good and evil alignments, etc.
It wouldn't be Galciv2, but some sort of hybrid of Tradewars and Galciv2. GalWars, perhaps.
Now, all we need are some coders, some creative leadership, financial backing, a publisher, lawyers, some way to distribute the game and some advertising to get started. Easy as pie.