J.J. Abrams spoke with The Wrap, telling them that they have finished the script for Episode VII and are in "deep prep" mode and ready to move "full steam ahead." As for all of the rumors circulating about the film, he thinks it's a good sign (mostly).
It’s amazing to see how many there are. … But it’s sweet because it shows that there’s an interest in this movie that we all obviously know is there. But it is an incredible thing to see how many crazy things get thrown out that people often then write commentaries about. How happy they are, how disappointed they are about something that is completely false. It’s a lot of noise, frankly.
As for one of the bigger rumors lately concerning casting talk with Breaking Bad actor Jesse Plemons, Abrams confirms they have spoken with him (even though Plemons denied the talk after the rumors began).
He is one of the actors that we’ve talked to, yeah. But, you know. It’s not often that I read about actors that I’m going to be meeting … that I get to read articles about actors who are going to come in. And so I get to see someone and say, ‘Oh, I read that I’m going to see you.’
Definitely not a confirmation of casting, just another actor added to a long list of people that Abrams and company have met with for the films. It does show you, however, that an actors word on rumors isn't any more sure than the rumors themselves.
They also touched on whether Abrams would direct all three Star Wars films or have another director step in after the first, but he dodged the question, offering only that he is "focused on Episode VII right now." He was willing to address the issue of filming for IMAX, saying that it's sometimes more trouble than it's worth and they would be sticking to standard film for Episode VII.
The problem with IMAX is it’s a very loud camera. It’s a very unreliable camera. Only so much film can be in the camera. You can’t really do intimate scenes with it. It’s slow. They break down often. Having said that, they’re working on digital versions of these and so there may be a version one day. But we’re going to be shooting this next movie on film.