I'm not entirely sure. She has expressed interest in exploring different stories over the years. But without any clear statements from her or her publishers, it's difficult to say for certain whether she is currently writing a new novel. There could be something in the works secretly, or she might be taking a break from writing novels for a while.
There have been rumors about J.K. Rowling writing a new Strike novel. However, as of now, there's no official confirmation. But considering how successful the previous Strike novels have been, both in terms of readership and critical acclaim, it would make sense for her to continue the series.
Yes, there are several Cormoran Strike novels by J.K. Rowling. The series has been well - received. Each novel in the series is filled with mystery, complex characters, and engaging storylines that keep readers hooked from start to finish.