New Map!?

I want Riot to come out with a new map with a different game mode and objectives! I'm pretty sure they have some ideas of a new map. It would be really exciting if they focus on making a new map. I mean, who wouldn't be excited?

I have an idea of a new game mode. Its very simple and I think we all would like it. Its TD (Tower Defense) I know it sound really childish but, sometimes I just feel like killing minion and monsters while defending my base. i just want a new map, we have too many champions.

if you guys have any ideas of a new map, you are welcome to say so.