Venom was a movie that ended up winning audiences in a unique way! Michelle Williams wants to come back in Venom 3 maybe because of the movie's success, maybe because she likes the character. Anyway with the information from the third movie everyone is moving.
In a recent interview she has already made it very clear that if it depends on her, she will be there!
I have every intention of continuing with the series. I certainly hope they bring me back.