Okay, maybe that isn’t the official title yet, but we do know a few more cast members:

Benico Del Toro, Laura Dern, and Kelly Marie Tran.

Del Toro has been in Marvel films: Thor: The Dark World and Guardians of the Galaxy.

Laura Dern was in films such as Jurassic Park and Jurassic Park III and more recently in The Fault In Our Stars.

Kelly Marie Tran is a relative newcomer compared to the other two and has no real big acting credits to her name.

http://www.starwars.com/news/star-wars-episode-viii-now-filming?cmp=smc%7C368071958&linkId=21276840