Good, Bad. I'm the guy with the gun.
Thank you. Personally, I think it would be a good story/film if it was done right.
Lets face it, Ash has fought all kinds of nasties and beaten them all: Deadites, Re-Animator and his Zombies, Zombie Superheroes (Marvel), Freddy Krueger and Jason Voorhees, Dracula, Hell's Prophet, etc.
I'm pretty sure he could handle even the Aliens and Predators. Moreover, he's got Evil Ash and Uber-Jason to deal with as well.