Welcome to SSC and anyone trying to make any type of space/flight game is more than welcome to discuss it here. Hope to hear more about your game. have fun in the forums and there is a lot of other games discussed here that could give you some inspiration.
Yes there are many ideas floating around here and links to even more places of interest. A question if I may? What kind of space game are you aiming for? As in, a mission based straight on shooter or perhaps something more open ended?