I like the idea for this, as a fan of these kinds of shooters e.g. Galaxy Force :) especially with almost Tron-like abstract obstacles and big battleship things. Felt weird to have things I couldn't seem to aim at & obstacles that obscured my vision of what was going on for a while.
IMO, adding general/visual polish + draw distance fog for the distant enemy forces to be hidden behind + a secondary attack/weapon/mode would be a great time :)