I always love seeing more of your games, so I'm excited to see where this is going. What you describe considering for updates sounds very fun, being able to capture and feminize (not necessarily in that order) civilians and enemy pilot bosses sounds very fun.
I think it'd be cool if there were Space-Invaders-esque sections between larger boss fights, and you'd capture the pilots of those smaller ships instead of "civilians", since I can't exactly see how that'd tie into the boss fight?