Idea for "better" towers
So i know one of the things i hate is that enemies can pretty easily reset tower aggro, then come back in and hang out under your turret before going in for the kill. This got me thinking, wouldn't it be great if towers targeted enemies even if they hadn't hit you yet? My idea is pretty simple; if a allied champion is in range of their tower, the tower after a few seconds, will target enemy champions who had previously hurt the allied champion (within range of the turret). The previously damage aspect is in place to make sure melee champions don't get boned by an enemy just sitting under turret and forcing it to focus them every time they came in to hit tower.
TL:DR: I probably rambled a bit there. Basic idea, Turrets now can "reacquire" enemies they previously targeted after a small delay, even if enemies haven't damaged allies during that time.