FFG in general seems against releasing items which can't stand alone with just the base game. So I doubt a product that uses all the expansions at once would ever be made.
They will support the movies first, the cartoon second and only after exhausting all that content go to books/comics.
With that said, Rogue One is perfect after Endor, however Rogue one would be long gone but EP8 will be right there. So I would expect them to support EP7/8 next.
I do hope that they hit Rogue one before moving on to EP7 though. It would be perfect with all the current content timelines and there is the DVD sales. Maybe Endor in the spring, Rogue one in the summer and EP7 in the winter.