Quote Originally Posted by Alhanelem View Post
It already can.

When you play as a monster in Monstrosity in FFXI, you can and will easily exceed 9999 HP.

Most of the early games with this limit had it because it was a display limitation. I don't know why people treat this as some sort of iconic FF symbol. It's just godsdangged number.
I was thinking the same thing... There's a reason everything capped at 65535/255 in FFX, as there was a reason most things capped at 9 or 10 in really old games the majority of the time. It's all because of limitations of the consoles they were designed for, not a design choice. Programming games these days is completely different from how it was back then.