So in this hypothetical version, Palpatine is dying, all this time he has been grooming Kylo and Rey, a prophesiced Dyad, to inherit the throne after his death. Palps gives the rundown to Kylo but he knows that there has to be a catch, he plays along but plans to kill him together with Rey. I think the dynamic between Kylo and Palps has to change, Palps will play the act of a weak, harmless old man, like the good old days with Anakin. Make Kylo less hostile, rather more intrigued. I’m working on a mockup that will go something like this:

At last! My boy.
Snoke trained you well.
I killed Snoke.
I made Snoke. I have been the voice inside your head.
The first Order was just the beginning, I will give you so much more.
You’ll die first.
I have died before, now I don’t have long, I’m weak - more than a clone, less than a man.
What could you give me ?
Everything - a new Empire, the might of the final order will soon be ready, It will be yours if you do what I ask.
Become what your grand father Vader could not! Find the girl, Turn her and bring her before me. Together you will rule the galaxy as emperor and empress. Two that become one. A dyad of the dark-side of the force.
Who is she ?
Our blood. (just my crazy headcanon)