Those are great ideas! Honestly it would be nice to call Benecio’s character “The Codebreaker” rather than just DJ, too. I love your idea for Rose too, because 1) it would help people empathize with Rose more, and 2) we could spend some time on those beautiful streets instead of just speeding by them like in the movie.
I like that idea for Snoke, though I wonder if he’ll get mentioned at all in IX.