[pseudoreality]

Pure speculation on my part, but I'll use the spoiler tags anyway.

Spoiler!

My guess is that the title, Rise of Skywalker, refers to a new force religion based around balance named Skywalker. So it is not about an individual, i.e. Rey or even Ben being a Skywalker. Luke was the Last Jedi and there are no more now. Ben and Rey will team up to defeat the Palpatine, with Ben dying, because like Vader, he can't come back fully and everyone pretend nothing happened. A lot of the plot will mirror Return of the Jedi in that aspect.

Also, what is all this clone talk? I mean, isn't the very definition of a clone an animal that is genetically identical? Rey is not exactly genetically identical to Palpatine now is she? You know, being a bit shorter, a girl, and all...