They'll never stop pumping out champions. By the next year there'll be 400 champions and Riot will wonder why no one is willing to learn how to play the game.
Hell, try getting people to understand what's going on now.
"Okay, watch out for this guy. He can dash to you and if he dashes through something before you, he can dash again. But if he doesn't hit anything he can only dash once. And oh yeah, if he has a red bar underneath his health, that dash also reduces your armour. But don't worry, that means his other skills aren't as powerful because it takes awhile for him to recharge that red bar from autoattacks. Oh, but if he becomes all huge and scary, his red bar grows very fast so he can just spam all his skills to their full effect."
"Yeah, be careful about this guy. If he hits you with his blue fireball, he can dash into you and do a hell of a lot of damage so try to avoid that projectile. Also, don't stand near him as he can slam the ground for some damage and then if he wants, he can slow your attack speed and movespeed by a lot. Oh, and they all detect stealth. But these stealth detection stuff can't detect certain stealth from wards or shrooms or Jack in the Boxes."
"Right, this girl is a bit of a problem. Basically, if you see a giant yellow circly pillar around your ally and a big yellow sphere around this girl, don't bother trying to do anything to her as you can't affect her in any way. However, she does a shittonne of damage and that person is most likely dead but you won't be able to help him. However, if you are the one with a giant yellow circly pillar on you, then you should either try to kill her or find some way to stop her from killing you as you'd be the only one who can do anything to her at that point. By the way, this giant yellow circly pillar is different from the giant ORANGE circly pillar."
And my favorite. Every newbie's bane:
"Okay, so this guy has a skill that makes him unable to die."