Mbt het verhaal: het wordt geen boekverfilming:
E! Online's Leslie Gornstein spoke to a Lucasfilm source and got the following quote:
"It's an original story," a LucasFilm source tells me.
So there you have it: Star Wars VII will not be an adaptation of any existing licensed Star Wars story. Kiss your big-screen Thrawn Trilogy dreams goodbye. Given that Episode VII has undoubtedly been in the preliminary stages for some time, there is next to no chance that this will change.
UPDATE: And then there's this from The Hollywood Reporter:
Sources tell The Hollywood Reporter that one possibility being considered is an Avengers-style movie universe with not only Lucas' planned final trio of films but offshoot movies focusing on individual characters.