I personally don’t mind if the main movies remain pretty standard fare, even if I am a little bit disappointed there’s nothing new coming to the table this time around. To build on @SnowCrashed’s analogy: Abrams’ work might be the Pizza Hut of Star Wars’ potential, but hey, I don’t mind Pizza Hut. I’ll eat there when I’m too lazy to cook.
On the topic of “fantasy directors”, though, I’d really like to see more side story movies directed by people who work in different genres/mediums altogether; pull in the director from Prince of Egypt and Brave, Brenda Chapman, or the one who did the Madagascar movies and Boss Baby, Tom McGrath. Hell, pull in Yeon Sang-ho (Train to Busan) or Jamie Babbit (But I’m A Cheerleader!). Tap some TV talent and look at Ragnar Bragason (Naeturvaktin and Dagvaktin) or Shonda Rhimes (she’s Shonda Rhimes, you know who she is).
I’d watch any of their treatments of the Star Wars universe in a heartbeat, if only because they’d feel completely fresh and new.