So you're the one who's going to make this new map, right darkwind?
Remember, you have to set all the provinces by hand! Nah, whoever makes the next map is much luckier than me, they get to have all the province garrisons made for them....
Actually though, I think we could fit at least one more sart location in. The small planet cluster at the top right has enough land that it would work as a start location for either the orcs or the insectoids, if we set them to always start there. And if we really wanted we could start the other one in the bottom middle. I don't think it would be unfair to, say, have the orcs in the top right and the insectoids bottom middle. It would help balance out their overpoweredness a bit :P
That said, we simply will not have the space for all nations when qinus/pyria/machaka come out by any stretch of the imagination. So yeah, we do almost need yet another new map already....