How about instead of focusing on pumping out URF clones/Making Cray-Cray new game modes
Why don't we just make new maps? An honest change of scenery would do so much for the game.
Keep this new mode still in the tower defense style that everyone loves MOBAs for and just change the map. Make a new monster in place of Baron/Drake or Vilemaw, change up the mobs.
This will also let you explore way more story events and make the game have a new layer of depth of skill if players have to essentially relearn the map.
Now I know Tencent may not approve of this, but it'll be nice if you at least consider it.
We can even have maps for each region like Targon/Demacia/Noxus/etc/etc.
I don't know, it just feels like SR and TT get old after a while.