Yesterday I was playing KoF2kUM and KoF98UM on my cousin's xbox, the amount of characters that I want them redone are massive. Not just the characters, special moves, DM's, stages and other things like winning poses.
Yes' KoF XIII does lack many of those things but I salute SNK for giving us the best new generation fighter. Considering the money, time and the resources which SNK has and comparing them with other companies like capcom, they made a much better game.
For the new SNK fighter I hope to see another KoF either XIIIUM or XIV. I wouldn't mind if they reuse the sprites, maybe they can add to them. Mostly I would like to see more, more of everything especially characters (they have to make it balanced, like KoF XIII is. by balanced I mean no broken characters). There is no reason for them not to make a much bigger game this time around.
I think they should announce something soon maybe in EVO; I am really waiting for an announcement.