Just to say from what I read it doenst look like shoryuken loops are really possible. You can tech earlier now after being hit by the shoryuken. Plus besides that now duck hs is slower and only hits once, and the attack level of stand slash is lower to.
Speaking of that f+k, stand s(you can not stand slash to light saber anymore), and slash fireball do less stun. Slash fireball is around level 3 apperently. And now even on counter hit, its difficult to combo after. So no more mid screen fireball counter hits, and then getting a combo in or even a slide. Its very difficult I guess.
He also has a FRC on his HS fireball, but its really late into it, so its hard to combo after it anyway.
No more shin akuma.
No more 6k loop obviously.
The 6hs is basicly isukas back turn attack. Staggers on normal hit, and if it hits you in the air(didnt seem to say it had to be counter from what I read)it bounces you against the wall. Also apperently the whole feet being invincable wasnt true?
Also besides big fireball disapateing once it goes about full screen, its attack level is also apperently down, and its slower to come out. Its apperently isuka speed.
Blah whatever all the other stuff has already been said I guess.