User blog comment:MakeShift/Discussion on post-Crisis changes to the wiki/@comment-26447726-20200117115534

Regarding the separate article for characters route, I think we should create pages for the Earth-Prime versions of the Paragons and Oliver up until their consciousnesses were overwritten by their pre-crisis counterparts. We'll still continue adding info on their pre-crisis pages.

Here's a thought (or a theory): Oliver on Earth-Prime was alive up until the consciousness overwrite on the Paragons. It's the only logical way that everything happened up until Earth-Prime 2020. But don't take my word for it, let's wait for the info on Arrow.