They may change names/planets, but the ideas I bet will be fairly similar.
Like they could do a Rule of Two era, but not name him Bane, somethin like that.
Instead of Revan, it's Kevin, stupid **** like that.
But no matter, it should be EASY to set a time hundreds of years before TPM and tell stories of Sith, Jedi, and Mandalorians. Create dozens of new characters based heavily or loosely off the material Kennedy doesn't think exists. Could be open ended. Doesn't have to be a trilogy, could just do a number of film's under a same era like Old Republic 1,2,3,4,5,6, etc and just give each a name but under the Old Republic umbrella. Or call it Jedi/Sith War, whatever you like to differentiate the film's from the Skywalker 9.