It's possible things may get shaken up a bit in later levels. I did want to keep the initial levels fairly straight forward to ease learning curves. I'm not sure if I will be expanding on the "help" sequences specifically , but I do like the idea.
I suppose one of my biggest reservations on them escalating is that it gives incentive to the player to let your ally die/lose. While I don't think "lose" mechanics are inherently bad in H-games, I feel like it doesn't work in favour of Starbreed's structure. This is just how I feel about it, though. That being said, that doesn't necessarily mean the "help" mechanic can't be expanded on.