The Concept: A game with rotating GMs, set in the New Canon (but not without licences from Legends) parallel to the events of Star Wars: Rebels, that starts 5 years before the Battle of Yavin and the destruction of the first Death Star. No need to know Rebels by heart, though. I'll insert references here and there as rumors of what is going on in the Galaxy but nothing more. The only necessary thing to know from the show is that at this point there is no official Rebellion, only a number of cells ignorant of the fact they are part of a network with a grand scheme.
The game would be to start as a normal tramp-frighter campaign, with the chars trying to repay their ship and set up their business. The Rebellion would pop in slowly at the beginning and become an increasingly big part of the game as it moves along.
Because of the inspirational sources and the rotating GMs, I was thinking to organize it kind of as a TV-series with a common frame and different writers/directors, i.e. us.
Of course, everybody has the same amount of say in the direction the game would take, what we would find fun to do and such, there should be quite a bit of discussion and organization to be had OOC between ourselves, and decisions taken by general agreement.