I think urn playing in blue lane would only be possible if they added side-lane objectives. My ideas would be something that gave permanent stat buffs, or something that refreshes all ability cooldowns / charges?
This at least gives teams that are behind objectives to trade for
after playing this patch a little here is my tier list
I don't like the ARAM mid, one-sided games. Teams that are behind have a much harder time coming back now
Also, teams that have a better urn-contest, AOE CC or space control team comp, have a much better chance at winning.