Yeah, I'm definitely hoping Mirai will give another choreographer a shot this season, though I doubt she will. I didn't like either of her programs this year though, when skated well, they achieved the desired effect. Her SP performance from nationals really sparkled, as did her LP from 4CC. A lot of it depends on how clean the delivery is because mistakes disrupt the flow of the program...and with the program being not that great to begin with, any disruption makes it fall a bit flat.
I'd love to see Mirai give Shaye Lynn Bourne a shot, along with Sarah Kawahara...or Tom Dickson. I love David Wilson's choreography but it's a bit signature for Yu-Na. I agree with the recycling of the movements and the fact that Christina Gao comes off like a C-version of Yu-Na. I definitely think David should work with Christina and help her develop her own style because right now the choreography style is 100% Yu-Na.
As for Mirai, her style seems to be more her own IMO. She's never reminded me of Yu-Na in her movements which is good. Her personality comes out when she skates which is also good. It gives a different level of depth to her programs...unless Lori gives her choreography that completely stifles her personality which, IMO, her Geisha program did. If she sticks with Lori I really hope Lori tries harder this year...b/c last year those programs look like they were thrown together in 15 minutes...