SOMETHING TO KEEP REAR ADMIRAL 5 PLAYING
Skills Reset Ability.
Ability to buy extra ship slots (to have more ships waiting at your dock)
Change ship captain skills to not be tier specific. eg, All cruiser captain skills should apply to all cruiser ships, not just ones of a certain tier. It should never have been designed like this in the first place, it's idiotic when viewed from the endgame.
No loadscreens - replace it with a warp-speed starfield animation.
Ship cargo bays (stores ship equipment leaving your inventory for ground equipment, resources and commodities.
The ability to have multi-person ships, the ability to walk around inside a ship while it is being flown by someone else. The ability to look out of windows/viewscreen and see what is going on outside the ship.