Fang Zei said:
So far we've got:
-Michael Kaplan as costume designer. He's not only worked with Abrams on Star Trek '09 and the sequel, he also did the costumes for Blade Runner!
-Chiang and McCaig coming back as concept designers.
-Williams doing the music, which should've always been a foregone conclusion.
We're still awaiting confirmation of who the production designer and the cinematographer will be.
There's also:
-Lawrence Kasdan as a writer. He was reported as just consulting on VII but Kathleen Kennedy has referred to him as one of the writers.
-Michael Arndt as a writer. Pretty sure he's the lead writer.
-Simon Kinberg as a writer/producer?