Gokuna agenda 👹 (?)
Yuji somehow successfully separates him from Megumi and Sukuna's soul rushes towards gojo's body (if yuta loses) to make it a new vessel for him. But, he won't be able to use the Six Eyes and Limitless techniques because he's not a descendant of Sugawara.
If you noticed the watch, there's 3 hours time gap, meaning Shoko took that time to saying her final goodbyes to everyone, especially utahime who tried to talk her out of it and offered to take her instead.