FFG has indicated with X-Wing, that they're looking to get right to covering the movies. They have already exhausted every ship shown in the OT that fits their scale; to the point where they even expanded their scale-range before releasing any EU ship (with the single exception of the Moldy Crow.)
They have shown that they fully intend to get as much mileage out of each piece of art that they generate. There are still over 50 fighter-based images in X-Wing that do not yet appear in the LCG.
Cloud City is already represented by 7 OSs.
Given these points, I'd say that it is a fair bet that Endor will be the next cycle as it has the following going for it in regards to the above-mentioned indications:
- Accompanied by a space battle in which many of the ship-classes represented by the unused fighter images partook (B, X, Y, A, TIE, TIE/In, Lambda, Falcon).
- High level of mainstream recognizability which I assume is one of the driving factors of their choices.
- With only 2 existing Endor OSs, the forest moon still has ample room for exploration; much moreso than any other single location foound in the movies.
