I would like more vanity drop helmets. Alien faces, robot faces, helmets, etc. I would like to see a new one introduced every couple weeks to add collectability and character customization into the mix. By adding a new one every couple of weeks I think it will keep players around between level caps.

I would also like to see more armor sets that work with each other. The last 3 cap armors don't really work well with each other, it would be nice to have so many choices that work with each other. Could also be vanity pieces to go with the helmets suggested above, but this way drop rates would be low, people will have something new to go after, and every couple weeks there will be something else added to the mix. Maybe add a level just for this purpose for capped players that only a group of 5 cappers could possibly survive and complete, and raise the difficulty each cap.