The point is: you have limited resources. You can create 10 new flashpoints or 3D space combat. Not both.
Then I'll take the space combat.
I think you greatly underestimate the number of people who are not just Star Wars fans, but who love 3D space. That in itself will bring people back to this game, or bring them new in the first place.
Many people played SWG ONLY to do SPACE! You don't think the same thing could happen here? Obviously.
It's Star Wars. And until now, we seriously lacked Stars. Hope this turns out for the best.