My dream book will forever be Future Foundation, a book in which The F4 task Johnny with more responsibility by creating a philanthropic superhero group. It'd be a lighthearted, yet serious book kind of like the '90s X-Factor. My cast is:

Johnny Storm (founder)
Janet van Dyne (PR, tech consult)
Wyatt Wingfoot (mechanic/pilot)
Jennifer Walters (legal/brawn)
Jamie Madrox (experience)
Cindy Moon (first rookie they recruit)

They all kind of know each other, so it's not completely random. As for Janet, she'd end up being the "mother" of the group. And I can also see her as Cindy's mentor. It's my favorite thing to talk about. Haha. I would work at Marvel as a writer just to pitch this book. Lol.