Don't know about episode IX, but my sources with Disney tell me that Michael Bay is set to direct episode 7. We are in for an epic tale of love, CGI and explosions.
Also, Rolland Emmerich is in talks for episode 8. Kinda fitting since there is supposed to be an alien landing in the movie, which is pretty much his area. Also, Boomer the dog will make an appearance as Dewback #7.