As you can see in this list on Wikipedia, cyberpunk has multiple derivative genres.

However, I wonder if a new subcategorization of speculative fiction could be created for art, literature, television, film and other media which deal with the combination of ghosts, spirits and the afterlife with literary elements that have been associated with cyberpunk, steampunk and other derivatives: urban settings, overbearing governments, high technology, innovative resistance methods, etc.

I call it "ghostpunk". However, it might also be a subcategory of "mythpunk".

I would say that something as benign and kid-friendly as Danny Phantom would be a good candidate for a Ghostpunk television series, or at least the beginning of a ghostpunk media.