Here is are two things that aren't of much priority but can still be fixed on the wikia. I don't have admin status so I can't fix them myself.
1. We should add another category like the "Character" one, for example we could have: "Locations", "Misc." , "Groups" , "History" but for many of those we'll have to wait for some more info on the manga :)
2. Under the "Community" category the link to the forum doesn't work correctly, the link takes you to a page that says that forum has been archived. A correct link could be added ;) (and yes I know that you can still acces the forum under the "On the Wiki" category but still, why leave something broken when you can fix it?)