HELP! (Deja vu)

I THINK I might have switched out of all main characters in my book. .___. But I'm a bit confused. I liked the First Class. They're the founders and stuff. They're the alter egos of my best friends. Buuut... we're all too much alike. That's great in real life, but in a book... that doesn't work for much plots.

So. You might be wondering about the new characters. Late at night three or so months ago, I created characters for a Fullmetal Alchemist Brotherhood fan fiction. The characters ROCK, they're all cool and stuff, and I desperately want to use them, but... there's also the question: Would the OTHER characters in the book fit well with them? SO! I need your help!

(Pick two)

a.) Go with the originals/First Class
b.) Go with the new ones/fan fic children.
c.) Go with the fan fic children, but slide in the First Class later, so they're still included.
d.) Put up short character bios about what they're like, Mar, because I have NO IDEA what you're talking about!!!

BY THE WAY. I had a dream that I met Red. She had a colorful rainbow shirt on and was reading the Harry Potter books in a different language. But I'm pretty sure you don't live in the Michigan Ohio border area/around Toledo. So I knew it was a dream.
(But it was a fun dream)

Comment! I need help and Camp NaNoWriMo starts in two days! D: