I'd like for spells like Scathe, or enemy skills like Sandstorm, to not utterly break the basic functionality of the mechanics, myself.
I'd also like to see some form of difficulty besides "unblockable instant-kill attacks". But this isn't supposed to be a complaints about XII thread, sorry. I would like to see an HD version, but I would like the mechanics cleaned up (since apparently the spell problem was caused by the inability of the PS2 to handle more happening, so it locked your other abilities out while those types of abilities were in use).
That said, I'd like a 3DS version of Super Mario RPG. And the first two Paper Mario games while we're at it (I never played the first one, but Thousand Year Door was really good).
And Super Metroid. And Secret of Mana. And F-Zero. And Soul Blazer. And Illusion of Gaia. And Super Ghosts and Goblins. And Yoshi's Island. And...