Riot gave us a sneak peak at their newest upcoming champion, Zed, the Master of Shadows. Riot hasn't commented much about him besides the fact that shadows are his game. I imagine his moves will be close to Leblanc's passive or Wukong's Decoy (W).
That's about it. Riot hasn't shown much more. Stick around for more news regarding League of Legends and any further updates on Zed, the Master of Shadows.