I know it would take a while but some level where there are some "intruders" on the ship would be cool. Maybe a crashland on a hostile planet later aswell.

i feel like larger A.I battles with litmted player involvment would be fun

or some sort of "level" system(even if thats already in some of the challanges) were you kill a bunch of bots and a door or jump pad is unlocked

balancing on a thin path located above the cage with raptors (for example), being fired archers