At least trust that Flanagan will take this source code and make a redux that will be relevant to modern times and in its own right be an original retelling. If not go look into a mirror and hopefully you won't get bored with that.

Going forward, I think that it will be crucial for Marvel to that it is more grounded than DC and to always keep its characters infused with some humanity and reality. No matter how powerful they may be depicted.

I would say check the books because Pennywise, the Crimson King and Dandelo are of the same deadlight entity that exists outside of space and time. With Maturin being deceased, that entity can still run rampant without any weakness.