I am currently writing a paper and not sure how to choose what to include as future work opportunities. Based on our work, many other extensions in different areas could be made (which I of course cannot include all).
Is it better to have something very tightly coupled with the current paper or something much broader that offers a lot more potential, but perhaps is a lot more speculative?
Or put differently, what "size" should the future work be? Part of another paper, or more like a PhD scope?