Board Thread:General Discussion/@comment-27101167-20151128035005/@comment-32672532-20151202080157

Can he truly die? No. Can his physical form be destroyed? Most likely. Can he be sent back to his own dimension? Yes, but as stated earlier, it'd only delay his plans for taking over the world.

I think the protagonists would either have to rely on destroying his physical form, or travel back in time to prevent Mabel from handing over the rift. The latter is unlikely—once again, that'd only delay his plans. Even if they destroy his physical form, that wouldn't stop him for good, and he even still might be able to keep the apocalypse going...

...Yeah, I don't know how they're going to stop Bill. Maybe permanently weaken him, or seal him away until someone summons him again?