The only person that can possible fight Juha at this point is the God himself Aizen. Yhwach is on another level with his The Almighty power and the only thing that can counter it is an equally freightening ability such as Aizen's complete hypnosis.
You can't fight an ability such as The Almighty with brute strength. Just won't work.
I believe we will see the return of the God Aizen and some Epic Kidou and fun dialog in a battle of spiritual pressure and fighting tactics. The question is does Aizen alter the sense of Juha in order for the Gotei to have to pull off some sort of final move to kill him.
It has already been shown that Aizen can manipulate and alter Juha's perception as he did it in the short visit in the central 46 prison.
Thoughts? Aizen is definitely my favorite character and can't wait to see the action and i see a Bankai incoming.