I have a ending theory for jjk.
we now nobara is not declared dead yet and also we know that sukuna only absorbed 19 of its original fingers
what i think would happen is one by one sukuna will kill everyone while everyone weakens him very slightly until only yuji is left ..then we will see that nobara is still alive but not in a good health and definitely not strong enough to fight sukuna but she has the final finger and uses her life as a binding vow and used every bit of her CE on that one finger through her technique which gives yuji the opportunity to kill sukuna but also killing megumi ...
In the end , Yuji wanted to have a death where he is surrounded by people but no one he knows are alive.... the final panel shows that he died alone.....
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