Okay I can tell you this much we expect to support SE:IV Gold as the final SE:IV game for quite awhile.
As far as we go Aaron has another NON SE:IV game that will come out towards summer, then a new twist on the SE series that we plan to have out by the end of this year. If that all is succesful the plan is to start on SE:V later this year, but we have no ETA on it's completion.
And no I won't get into a lot of details on Aaron's new game....yet. As far as the other SE game I will only say this (and yes that's all I will say for now) but it will be a game set in the SE universe but not a 4X Turned based game. And no Hadrian it isn't a MMO game either
.