I haven't bothered to do any of the online MP feedback surveys, but don't they come with an option to make requests for future MPs? Binaltechs and earlier G1 reissues came with the survey cards which allowed you to request up to 3 characters for future releases per card. I used to use that a lot and mailed them back to Takara.

I don't use the online surveys so much. The online surveys for the reissues no longer allow you to make nominations - not sure about online MP surveys.

I'd rather have a Classics-Universe/Henkei Arcee actually. As nice as MPs are, they're not as fun to play with as Classics/Henkei. Classics/Henkei are cheaper too.