Lord.. more people are getting into these drives and stuff.. first i've seen those your character here drives.. now this.. mainly there's a huge bandwagon going on here.. but i'll tell you though.. it would likely come to a point it'll go into something like say..

Shrink Drive
Mainly the drive generally the same but rather than having the characters grow, this time they start to shrink down so starting at a normal size you can choose what can be shrunk down..

Superhero Drive
Mainly turning a geeky character into a superhero in what every way possible by adding more powers and them stronger or having stronger powers.

Gender Drive
Mainly changing the characters gender in a way.. making a girl better or a guy better..

Though i have a feeling i might have given ideas away.. but who knows.