That's why I mentioned Okami as that was Capcom but developed by clover(now platinum games), as that's in a similar situation. Controls shouldn't be an issue as they can make adjustments. Square-Enix is bringing The World Ends with You to the Switch for example.
Don't get me wrong, I'm not saying a remaster is happening, all I said was that I wouldn't be surprised if it happened as a blatant attempt to recoup cost. If there's a real reason why this will never see the light of day, it'll probably because it's a cross-over title (licensing issues, ect).
This game didn't sell poorly because of JRPG player interest. WiiU user base is tiny, to expect a niche genre to thrive there, an unreasonable ratio of owners would have had to buy this game (ie: doomed to fail). The Switch install base is a completely different situation (ie: small percentage of players would still be a success).
As for other rpg ports on failed consoles to mainstream: Grandia 2 and Skies of Arcadia (Dreamcast and moved to the PS2 and Gamecube respectively).
I still say the chances are better then unlikely, but I wouldn't hold my breath (and if it did happen, it would be a port, and possibly different in lieu of control changes).