I'm just going to start rapid firing some ideas sorry for lack of punctuation

I think it would be cool to incorporate from other games and how they do stuff like in Homeworld ships and fighters entering and exiting bays where it shows them fully going in and out i feel like this could also be implemented with trade ships 

I also think it would be cool for planet defense to become more than just nuking from orbit something like a stellaris approach while also adding for fighters and bombers to help with planet capture as they would be able to target certain structures and provide ground support if the stellaris approach to planet conquest was used which probably wont happen because this would be to different form the original sins

Research is abysmally slow and I realize that in the old sins game you could just click a button and it would speed up your researching speeds but I think it would be really cool for those research stations we use to provide a bonus to research speed the more there are of them the better the bonus or doing something like that with the universities you can build on the planets maybe they could also boost research speed personally I feel like this would be a cool way to do it rather than the way sins 1 

I like the way the minor factions work compared to the original sins and realize your probably not done with them yet but I think it would be cool for these minor factions to specialize in something that you could buy off them like a weapon that can be shot from the planet at a fleet in space 

Something that could make asteroid fields more interesting or dead asteroids in general would be the ability to put a gun/hanger emplacement on them or you could also use that as a place to build infrastructure that would connect it to the main asteroid something like the live action halo.

I also think it would be cool to build research facilities at the places where you cant do anything like in sins 1 there were these fields of gas or electromagnetic storms which was just like a placeholder for a planet that had refineries you could capture in them

I also think fighting could be improved upon instead of just the stationary fighting that is in this so far i think it would be cool to make them swarm around each other like the ship combat in stellaris so there is always something going on it would also allow the physical projectiles put in the game to either shine more

this is all I can think of at the moment and again sorry about the lack of punctuation but I hope who reads this has a great day