grandy_UiD said:
But then what's the point of starting that fight in the first place?
So his fight can go on offscreen and we skip to the momment he gets wrecked, triggering Momo-chan's powerup so that she can off the Miracle. And then Aizen shows up and stabs her a couple of times
Shangetsu said:
I doubt he's omnipotent enough to be able to see the entire future otherwise he'll be invincible. At most there must be a limit to how far and how precise he is able to read it.
He cannot see the past so it's impossible for him to know anything Ishida did before Yhwach went to sleep and he probably cannot see the future far enough to know for certain if Ishida is going to betray them.
You can easily deduce that he's foreseen Ishida taking some action outside what he's been ordered to do and it is suspect. In the army, for example, a soldier cannot just go and do whatever he want no matter his intention. That's exactly because Haschwald cannot ascertain Ishida's intention in those potentially dangerous action that he's taking measure against him.
He doesn't know if Ishida is going to betray them but he think he might and that's reason enough to take action.
He doesn't need to see the past. He saw everyhting as the future some years ago - in the same manner Ywach saw what happened to Ichigo's mother.