http://www.starwars.com/news/rogue-one- ... on-anaheim
What we know about Rogue One:
-"the film will revolve around a rogue band of resistance fighters who unite for a daring mission to steal the Death Star plans and bring new hope to the galaxy."
-Timeline will be between Ep III and IV.
-No Jedi. But no official word about Sith, however.
-A leaked trailer yesterday (now removed via Disney Copyright claims) showed a flythrough of a forest planet...looked more like Yavin IV rather than Endor...and panned up to show a giant, fully constructed Death Star hovering in orbit.
A lot of people have been celebrating that we'd finally see Bothan Spies. It's possible we may, but not a slam dunk. Mon Mothma's comments in ROTJ regarding the data providing by Bothan Spies was for the 2nd death star, and this is a completely separate timeframe. I'd suspect we'll likely see at least some Geonosians since their engineers conferred the plans to Count Dooku during the Battle of Geonosis. Still, it would be cool to finally have the Bothan Spy Network onscreen for a change.
It seems Disney has a full clean slate to do whatever they want here. But still, it's an interesting concept for a movie that will serve as a cool story-based prequel for EP IV.