Rebels is cool or whatever, but after they directly tie into the events of Rogue One (if they ever do) they should do a Season (or five seasons) of stories set after the events of Return of the Jedi, before The Force Awakens.
I would love to see an expensive CGI show/TV movie event that involves Luke Skywalker with Mark doing the VO. It seems weird to me they haven’t used his talents thus far.