I originally had much greater plans for this game, but as I continued making it I realised that my goals were unachievable.
Long(ish) term plans
I want to add a multiplayer deathmatch mode, and at least make a second campaign level, but knowing how fast I develop things, this is probably an overstatement
Shorter term plans
Some shorter term goals for me are to make a custom pause menu, a quick swap option, add more polish and effects, and add more enemy types.