How should no longer canon content be treated on the wiky?

I think at the very least it should be obvious, for any new wiki readers, what is canon and what is not. Should there be a disclaimer non-canon heading for old lore? Should it have separate pages?

The lack of re-structuring in the lore on the wiki I assume is because of the lack of replacement material. But I think it is time to at least start planning how the lore should be managed to create the most effortless reading experience for people who want to read and understand the lore, new and old. Has any discussions already been had? How will this be handled going forward?