Let's try a little thought experiment (and maybe generate some new ideas for the Riot devs).
Imagine if you will that League was going to be re-invented from the ground up. And Riot hired you to be a consultant on the direction that the game was going to develop. What would you want to see in a new and improved version of League of Legends?
A new map altogether. Something completely different than SR. This map would do multiple things that SR doesn't.
-Lengthen games to the point no game will end before 30 mins. -Have very different layout -Allow for new splitpush and gank strategies.
Fact aside this will never happen...
A 3D engine making a difference between jumps and dashes, making terrain actual terrain and hitboxes better than random squares would be a decent start!
No dashes on any champs, and diminishing returns for cc.
No bounty from cs and lower bounties from kills in general. Too strong comeback mechanics currently in the game which means the team that should have won, loses.
Old Akali
More varied maps.
Take everything that's come out in the past 5 years, and move it to the new game.
Then continue development over there.
A 
rework
#D E S P A C I T O T W O
jokes aside, I don;t know what I'd do
