Tim Curry Cameo
I know that everyone may not be a fan of this idea, but as a nod to Curry's original take on Pennywise (which was phenomenal), I would love to see him in part 2 of the series as Mr. Keene. I think Curry would fit the role perfect.
Haven't been to the boards in a while, so I don't know if anyone has mentioned recently the idea of him playing this specific character, but I'd like to hear your thoughts!