Nice that Space Colony is mentioned (and that they want to put some development into it in the near or far future)
It is still a great game (although I havenīt played it anymore for a long time).
As for Stronghold in other time periods ...
I assume the age of 17th-18th century would be nice, where fortress design changed in accordance with the development of cannons.
But I hope if they do, they will add a little bit more for single player ... something like "Siege that" of SH1 and/or base building against an AI that is capable of building its own bases
