I am interested.
As for suggestions I think a galaxy is huge thus you may want to limit things a bit. Subspace travel and such may be a way but how about establishing a network of "warp gates" Using these one can travel between two points and controlling these might be essential during the late game. With all other FTL being slow the gates would also be the centers of civilization where most of the activity be focused on. This way you can avoid the usual issue with space NRPs. Galaxies have billions or even trillions of star systems to exploit yet you still want the players to fight over territory.

As for the turn system I really don't like that but perhaps we can use this in a more subtle way. Rather than one posts or a set number of responses per turn or anything that artificial we can make the turns last 1-4 months or so. Basically we can split the game to tactical and strategical turns.

Tactical Phase:
- Your actions happen in real time (typical RP pace)
- You can fight, negotiate, explore and such (generally do action-heavy things)
- Can't do anything which takes up a longer span of time (months or so)
Strategic Phase:
- Once everyone is done with their tactical phase the GM declares the strategic phase
- Players draw up a list of actions they do during this timeframe(1-4 months, you decide)
- You can build up forces, research stuff, spy on people and do other things which require a longer term
- Some of these actions may require more than one strategic turn (depending on how much time they would reasonably take)

This isn't actually an idea of mine but took from a different NRP. Anyways it appears to work well. If you are interested I can explain more details.

Anyways, I may join this game as an earlier version of Morte.
Is it a problem if I am already at war with one or more alien races? It would serve to explain their militaristic tendencies and general xenophobia.