Your cast and crew for a Scream reboot?

It's still a young family member you expect to be the new Sidney revealed to be the killer, the motive is just inversed a bit. And if she doesn't want to be seen like her mom, how does being involved in another killing spree accomplish this goal?

Out of those, a secret accomplice sounds the best, but I dont think the killer needs to be related to anybody. It could always just be a new character with a self-contained motive.