Ayane sounds exactly the same to me in this patch. I tried it out, and her new BT CB gives a 15 damage boost over just doing BT 4K. CH 4K now is a sitdown, but when is that going to come up a match instead of say 4P, 6P, or 6K? All of her guaranteed force techs and combos seem in tact, and exactly the same. Her only real buff is that 66KK tracks, but that's a pretty big deal. It makes it more deadly after force techs if it actually forces that 50/50 on you.
She was already a really strong character. I'm happy that she stayed almost the same while many weaker characters got buffs.