All we can expect from IT Chapter 2
The low possibility of a Spin-Off
Although the acceptance that the story had, the screenwriter claimed that we shouldn’t expect a spin-off of the history, which explain Pennywise’s origin.
“I think it would be cool”, said the Annabelle Coming Home’s director, but he also expressed that “it’s not the right thing to do”.
Dauberman also alleged that he doesn’t know about any plan to continue the story. But if the writer wanted us to know more about the clown, he would already have written about it.