Listen, I love airhead bimbos. They're super fun to write and play with. In fact, one of my future projects features a truly dumb as fuck, super horny bimbo as the main female character.
The problem with what you're suggesting, besides the fact that I'd be throwing nearly a whole year of 3d work and months writing the script to the trash, is that Jen would cease to be the character she is now. And I happen to love her personality, her chemistry with MC and specially the way she looks right now. So for now, the game is going to stay as it is.
But hey, if you like that kind of extreme bimbos, I honestly think you'll love "Corporate Training for Parents (Step Edition)". Coming soon.