User blog comment:Red Chevalier/PE Proposal: Messiah/@comment-29644557-20191211052210/@comment-5555139-20191211140238

That depends, let alone if one particular show exist in a separate continuity. For example, Kyuranger is set in its own alternate world. So, the heinous standards depend season after another.

Kamen Rider is a rather strange case, if anything, might be in the same universe with Metal Heroes and Super Sentai since they belong to Toei. Unless if Zi-O revealing that each of the Heisei Riders' worlds are separate from each Rider, thus making the Movie War crossovers moot.