Does that mean that even the initial author doesn't have any rights on the article?
The only "rights" that a wiki like ours recognizes are copyrights. The wiki in and of itself is being put under
CC-BY-SA the moment material gets posted, though it might include material with less permissive copyrights as long as its use is covered by "fair use" provisions (which I claim whenever I post images from aRTD, as Minnas OK to use her art on the wiki was specifically for SSSS).
Exclusive "rights" to maintaining a page - nope. Wikia explicitly asks that even restriction to logged-in editing, while technically possible, should be avoided and vandalism just be reverted when it occurs. (There are straightforward "undo" links in the page's version history.)
If this is the case, what about giving this article a 'stable', definitive title (eg 'Magic') and have it begin with a warning in huge bold letters 'This article, as of page 273 of the comic, is only a compilation of a few facts ' ? (the important word here is 'facts')
Or, more simply, the whole thing could be delayed until we have a more solid knowledge.
Pretty much
everything we wrote up on the wiki is provisional and pending further, even contradictory, info from Minna; and yes, having things stated as "fact" for the storyverse (or obviously deduced from that) is the wiki's guideline, anyway. There are several different
technical implementations of working around the uncertainty, though. From "The Rash" and "The Illness" being separate articles (as it hasn't been stated yet that they are indeed identical) to somewhat awkward phrasing to explicitly saying "we don't know yet" to
empty sections to
redlinks (which indicate that we
know that something's a topic that'll merit its own article, if only we
had the knowledge to write it) ...
Back to the topic at hand, it's not like we can avoid renamings and
redirections altogether, but.