Where is the Tribunal? Is it coming back..?

I feel like the Tribunal has just been forgotten. It was really an ingenious system that allowed the community to decide whether someone deserves punishment. What has the system fallen to- many people can troll in games and evade punishment. Why are we banning people for "verbal harassment" - what was the mute button created for..? I just don't understand why the tribunal has been under "maintenance" for so long- we've been waiting a years! Another way Riot has made the game less enjoyable.