Hollywood is a very strong machine that needs, and in... especially with female actors, fresh flesh. It's that cruel. But that's the way it is.
Most regular superhero books are designed to go on forever; of course, very few of them do, but the point is they are trying to throw mud against the wall and hope it will stick, and most of it slides off.
Life goes on pretty much the same way. I've been working on a couple of films on the side. You may see some more. You may even see another television show.