I think the movie still feels like having Rey be a Palpatine is integral to her struggle. But it’s obviously a left turn from TLJ.
I’m hoping the Rey Nobody version can be as good as possible, and I’m counting on the creativity of others that I will happily reflect in the product. But, I still think Rey Palpatine is better for this movie in and of itself.But, hey, I kept Padme alive in Episode 3, so I am known not to totally abide by that thinking. At any rate, both cuts will be completed and made available.
I think you will still have to have her struggle with the Dark Side, similar to Luke’s fears in The Last Jedi.
These struggles and dark nature just aren’t being inherited anymore. They’re natural, just like in human nature how people are tempted with selfish choices and have to strive to be selfless (which are the core attributes that Lucas described the Dark and Light sides).
Another recommendation I’d throw in, that I’m sure people will reject, is having Chewbacca die. Make Rey face consequences for giving into the darkness and hatred.