sdRohan, any update or progress on the multiplayer issue?
Perhaps a total rework of the entire multiplayer codebase if necessary? Too bad you guys can't poach some devs from, say, World Of Tanks or Instant War - those organizations have got multiplayer down cold; so maybe hire/poach someone who has extensive experience with massive multiplayer coding.
I don't know about anyone else, but I'd gladly buy a DLC that not only fixed multiplayer, but expanded it so that 3 or more teams of 3 players each could engage in a multisided contest (perhaps with special digital assets or civilization enhancements as prizes.) For example, multiplayers could rack up points, and once they have accumulated a specific quantity of points, can trade it in to obtain a civ enhancement - such as the ability to choose a 3rd ability for a civ of their choosing; etc.
In other words, there is a huge opportunity here provided you can fix and enhance multiplayer. Since GalCiv 3 plays much different than GalCiv 4, there is no fundamental reason why development for GalCiv 3 couldn't continue. There is lot's of life left for GalCiv 3 -more expansions, DLCs, the works.