Twisted Tree Line

I've been a long time fan of leagues 3v3 system, however recently I think maybe riot should give it a go again. Do you not see a future for 3v3s anymore? I know the player base is not as large as SR, however I would like to see updates on it. Maybe a little more investment in fixing the map.

For example, towers are like a house of cards. People can just blow it up real easy and tower dive in the first two towers are easier as well.

Was Twisted Tree Line indefinitely closed for updates?