So I poked around old versions of the article on Mizzarch on the RS Wiki, because going by my own memory I sadly barely remember much of when he's mentioned, and it seems the earliest mention of his alignment was in 2014 (one day after Mahjarrat Memories was released) and it states he was indeed a Zarosian. On versions of that article prior to that edit, it was just stated that he was a Mahjarrat, with no mention of whose side he was on.
This, to my way of seeing things, means the persons who were editing that article weren't under the impression he was a Zamorakian, or Zarosian for that matter, up until MM was released, or just weren't sure and didn't want to say either way, then included it when it was a sure thing. I'd say nothing was changed or retconned based on this, although I wouldn't say it's impossible it happened.
07-Nov-2019 06:20:09