SNK is slowly updating all characters' spritesets each year. Iori got a facelift in XI, Eiji as well, Ramon got some new frames, Maxima and K' got a nice amount, and *gasp* Ryo got a nice bundle as well (even a new standing A, now all I need is a new crouching sprite, and a new crouching D and I'll be über happy), Vanessa got new stuff as well, Kim had his walking anims redrawn, as well as a new command attack, and we could go all day like this. It's not really SNK's fault to have not updated it sooner, but as all we knew, the piracy around their gamebase didn't allow them to. The fewer the sales the fewer $ to make games. It's simple as that.