After Jonh’s force ghost scene, I will fight to keep: “And I… I’m all the Jedi”. It just goes to show the irony of the Sith versus the Jedi. Palpatine thinks he is more powerful by killing/possessing and getting stronger while Rey as a Jedi is relying on others and the whole family dynamic that she seeks. That link hits so much harder now when Palpatine says it and it is just him alone but when Rey says it she now has all of the Jedi heroes behind her helping her to defeat him.
More so, her “Rey Skywalker” line at the end now would make even more sense as she is accepting her role as a Jedi (a Skywalker) and completing her arc from being no one to knowing who she is. I think in the context of these edits, the her calling herself “Rey Skywalker” is more in line with her accepting her path as a Jedi and not pushing herself into a family to hide her past. This is just something I think the community here has improved greatly in the context of the film, and with the new scenes, I would hate to see that line go!