The key word announced earlier was that Iron Fist won’t return to the Netflix platform and now Luke Cage is announced to no longer return. Based on thes eoatterns, I think after the recently released DareDevil season 3, iit too will move to Disney’s new streaming platform
"Unfortunately, Marvel’s Luke Cage will not return for a third season," said a joint statement issued by Marvel and Netflix. "Everyone at Marvel Television and Netflix is grateful to the dedicated showrunner, writers, cast and crew who brought Harlem’s Hero to life for the past two seasons, and to all the fans who have supported the series."
The writing is on the wall that this could be the beginning of the end between Marvel and Netflix, with only Daredevil, Jessica Jones, and The Punisher remaining at the streaming service.
https://comicbook.com/marvel/2018/10/20/luke-cage-cancelled-netflix-marvel-no-season-3/