A movie about Palpatine, no?
Would love to see stand alone movies that at some point cross the same timelines seen in the PT in specially key moments (this would only be possible with the PT, as the actors age still matches their looks by 2005). For instance, in a movie about Palpatine, we could see new personal angles for Anakin's fall and what happens with Windu in his office, etc.
It would be interesting to me at least, to have that overlapping of same situations in different films from different perspectives and serving different stories, like in the Saw saga