Not too sure but I think you can do st.HP xx LK Tatsu ~ cr.LP xx LK Tatsu infinitely in the corner. The timing is no joke for this, but I've been able to get 10 hits before the dizzy kicked in.
I'm going to assume the Arcade mode is going to remain the same here. Seeing as this is a balance patch with two new characters and all. I could be totally wrong though.