Anyone notice (sona , Garen, Vi, Zed ) champion page on League website is different that others ?

When you click on it, it load a weird/ new splash art of that champion with animation for a few sec then it goes back to normal champion date page. Here 's the link for them http://gameinfo.na.leagueoflegends.com/en/game-info/champions/garen/ http://gameinfo.na.leagueoflegends.com/en/game-info/champions/sona/ http://gameinfo.na.leagueoflegends.com/en/game-info/champions/zed/ http://gameinfo.na.leagueoflegends.com/en/game-info/champions/vi/

anyone know what this are all about ??