I'm of the opinion that Rian Johnson went rogue with TLJ and didn't follow the plan that was laid out by JJ. After doing a lot of reading, it fits the evidence we have. I'm expecting a lot of retcons in TLS.

That trailer definitely gets me excited again. I have no idea how their going to fit Palpatine into everything, but I'd bet they draw heavily on some elements from both canon and Legends for inspiration. Perhaps we'll get some sort of look into Sith alchemy and his ability to control people/switch his consciousness between bodies. What if "Snoke" was really Palpatine in a different body? The possibilities are endless. I just hope Rian didn't 17 everything up so badly with TLJ that JJ can't fix it. The man definitely has his work cut out for him after that steaming pile of maggot infested shit Rian dropped in his lap.