It hasn't quite happened yet, but like the Mutants they have created more Inhumans for teams that eventually were disbanded (or books that were cancelled) than we are seeing moving forward. One of these, and a character that I have been a big fan of, is Naja.
Sure, Iso and Nur are in the same boat... but Naja has always struck me as a fascinating character. Part of this is how her background has never been stated outright but it is pretty easy to piece together a rough sketch with a bit of effort and I think it would have been great to see it develop over time. Another is I think she has an interesting character design, serpent people usually being a villian mainstay.
She hasn't been dispatched quite yet (though with the current event it might be something more than just being forgotten) but she is absent from any materials going forward and I am disappointed that there will be a time without her big pointy-teethed smile.