I'd like to see the rest of the 1st year Autobots being developed as MPs since they've already done all the 1st Year Decepticons. Of course, "first year" for the Japanese is 1985, but a lot of 1984 moulds could easily be retooled as 85 characters, as we've seen w/ the MP Lambos and Datsuns.
e.g. Trailbreaker ---> Hoist
And a lot of the Mini-Bots could also be retooled as '86 Mini-Bots too.
e.g.
Cliffjumper ---> Hubcap
Brawn ---> Outback
Gears ---> Swerve
etc.

And don't forget to access TakaraTOMY's online survey to directly let them know which characters you would like to see them develop as future MPs.