Well, I already answered TM12, so here’s TM36:

…I’d probably do something in a similar vein to BW, honestly - new autonomous region, plotline with actual developed themes, emphasis on really awesome secondary characters that actually have personalities and do more than sit around.  Stuff like that.  As far as a gimmick with the region goes, I’d probably go with something really off-the-wall, like…I dunno, but something really bizarre.  Entire region caught in a time loop is the first thing that pops in to my head, to be honest, but something equally unusual would probably happen.  (Though it’d be less Majora’s Mask and more…uh, not Majora’s Mask - time loop as a setting thing, rather than an overt game mechanic.)

As far as names go, we’re kinda running out of dichotomies to make Pokemon games out of…Maybe Sun and Moon?  Sea and Stars…something cool-sounding that probably involves space, and is not necessarily based on colors.  Though hey, they never made any Orange and Purple versions, now did they? ; D