The arena of female-focus continuations is a small subset of films, and one that is as riddled with problems as it is championed as a general effort. Ghostbusters, for example, managed little to recommend, despite the fact that many hoped for a film that create a foothold for the future.
Ocean's 8 has a lot going for it on paper, but seems mostly like a movie that is an excuse to capitalize on a franchise. The cast will bring a lot of people in, as will the title, but we'll let you know if this one is worth your time.