User blog comment:DaNASCAT/Technical Update: January 25, 2016/@comment-11733175-20160127085948/@comment-26437440-20160127090727

Sadly, Wikia's put more focus on the games/movies/television hubs and less on the others (comics, books, etc) because the latter hubs "didn't get enough clicks" :/

They still exist, they're just hidden away in the "explore Wikia" thing