I dunno, I think there's a good chance they'll bring Ghetsis back or give him an expanded role in Grey. He never really learned his lesson. He wasn't humbled like Giovanni was, or proven wrong like Aqua/Magma were, or trapped for eternity inside a parallel universe for his attempts at playing god like Cyrus. He just kind of goes "Well that didn't work" and ends the game still a big heaping pile of crazy.
I know Giovanni's character arc was left unfinished back in the R/B/Y/G/S/C days, but it was closed in HG/SS (in the worst way possible but let's ignore that for now). Even Platinum took previously generic characters in Cyrus and the Admins and gave each of them some sort of resolution.
So yeah, they'll probably give him an actual ending and tie it into Kyurem somehow.
But hey, maybe it'll at least be on 3DS! <_<
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You have no time to ponder such questions, as Link has just grabbed a Smash Ball.
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