I am actually suddenly not sure about that. Thing is, long ago I raised the question of revamping the category system, and we ended up putting most of the articles into subcategories inside the bigger Category:<name of the game>. If we reorganized pages so we would come back to it, such a system would make looking for information very neat... but it will probably still not count for the edit tracks.
(I am actually not sure about latter point. It needs some testing.)
This question needs to be resolved before we start renaming.
On top, it looks like I might be attempting how to figure out a bot soon enough anyway. Knowing me, there is no guarantee that "soon enough" is actually soon, but, if you really don't feel like renaming all those articles, I won't blame ya.
My original ages-old idea was that the articles would go to the subcategory but not in the general category, to keep the general category clean. E.g., Nevan would go to "Devil May Cry 3 bosses" category (and that category IS part of the general DMC3 category), but NOT to the general "Devil May Cry 3" category.
I tested it out, and looks like edits to articles in a subcategory don't count for the edit track, which is actually a crying shame what the hell? But it's nothing we could do anything about.
I suppose we will have to add those articles BOTH to relevant subcategory and the general category in order for this to work. So Nevan would be part of "Devil May Cry 3" and "Devil May Cry 3 bosses" both.
And yeah, you can proceed with your grand switch, I am not sure when I will get around to figuring out a bot.
Actually, after testing this out, looks like we might have to fix the other categories as well... but meh. The categorizing on this wiki needs a real uplift anyway, and if we start on something that big that's *definitely* a work for the bot.