User blog comment:MakeShift/The Crisis and its impact on the Arrowverse Wiki/@comment-675805-20200123165434

As for the splitting and merging of pages stuff, I've seen some wikis on Fandom made sub-pages linked at the top of the page meaning you didn't even need to make them entirely separate to begin with.

Like for example: https://kamenrider.fandom.com/wiki/Sougo_Tokiwa. Notice the "previous timeline" box at the top of the page that links to https://kamenrider.fandom.com/wiki/Sougo_Tokiwa/Previous_Timeline.