did anyone saw the gamespot kof xiii demo ?
if you pause it at 00:20 you can clearly see joe's stance been tweaked.
What you're seeing on the mode selection screen there, is a pose from Joe's walk animation, similiar to how Terry's pose there is a frame out of his walking animation. Those poses have been the same on each build shown, and aren't related to the character default stances. More like... everyone taking a step towards each other, ready to fight.
If SNKP was going to change Joe's stance, I'm sure it would have shown up in the "Joe console changes" video, anyway. It'd have been nice if it had happened, though!