sorta like a new game + with added features for people to enjoy
you could even have it be new realms idea so the first set of girls are pretty normal but as our inc becomes more and more dominate and aggressive the girls also level up
you could even add new forms for inc in the new game + mode
first is his current
2nd would have him buff up
3rd could have him become something bigger like a were wolf
[personal idea werewolf with the incbus tail and horns yes its more a personal thing :) you could even give this form the blue skin by making it blue fur with black skin]
the fur would look like its glowing off a dark background :)