Carrey is starring in and executive producing the long in development adaption of Steven Niles' IDW comic book, that has been adapted by Jon Croker (The Woman In Black 2: Angel Of Death).
If you are unfamiliar with the comic book, it follows a local TV horror presenter and former LA weatherman Aleister Arcane (presumably Carrey) who is forced off the air by unsympathetic suits in the town of Jackson, Oklahoma. The towns' kids are the only ones who make the effort to befriend the old dude, which is handy when he dies and curses the whole place, because they are the only ones who may be able to lift the hex.
It should certainly be juicy terrain for Carrey to scare up a storm, and a handy showcase for some talented child actors. Roth, meanwhile, has plenty going on, including directing Bruce Willis (Looper) in the Death Wish reboot.