Again, my only worry is the scene between Kylo and Palps we positioned before Endor wherein Palpatine is just straight up telling him to kill her again. Plus, I really like the idea that Palpatine is equally fine with either Kylo or Rey to take the throne. It makes what he says to Kylo in the intro genuine. It also allows whatever happens between Rey and Kylo to still be a part of his plan. We mention the fact they share the same fate earlier, we don’t want to take Kylo entirely off the table immediately after saying that.

If you think back to TLJ, Snoke isn’t giving Rey a fair chance whatsoever. He’s literally holding her in place and forcing Kylo to kill her. I just have a hard time buying that was something Palpatine intended to be a “challenge” for Rey to overcome and become more powerful. It’s only because of Kylo’s interest in her that she lives. They don’t conflict with each other, they fight as one. This is clearly not what Palpatine would want.