I wish they're take break on the championmaking a bit to fix the ones that have been around for a while and could reeeeally use some attention. They really need to fix eve, twitch, kat, kayle, jax and a few others, altough on the "being bad" aspect jax is the least offensive one. Eve is outright useless against anyone with some money and a few working brain cells; Twitch IS a bad champion all around ever since his nerf, altough you can still carry as him, but you need a pretty good start to do that; Kat is pretty awful and is only somewhat useful if she's fed to high heavens, due to complete lack of CC and channeled melee ultimate; Kayle is a subpar support dps thing that needs very expensive items to work and even then she's not that good and jax is the once awesome anti-melee carry that shuts down autoattackers but is subpar compared to some new champions of the same role.
Jax is the most workable one among those, though, he can still surprise people and shut down certain champions, he's just not that good. The other ones I mentioned are downright useless if countered properly, and even when they aren't they're still bad.
Some of their new champs are pretty good and the ryze remake was pretty well done, they can surely do something about the other champs me thinks. I mean, jarvan is good, irelia is good, karma works, renekton is awesome. Why not just pause a bit on the championmaking to fix the goodie old ones and make them playable again?