Apple has started to reject mobile games from the iOS app store for displaying guns in their promotional material and app store icons. So far, the regulation hasn't had an impact on actual in-game content.
Square Enix has trademarked "Square Soft" and "Enix" in Japan. It's unclear if this is to prevent other companies from using them (highly likely!) or if Square Enix will use them for branding (perhaps!).
German eSports team Meet Your Makers (MYM) has "released" Sebastian "Falli" Rotterdam following the revelation that he threatened League of Legends player Marcin "Kori" Wolski to prevent him quitting he team