What I think the next preseason class rework should be.
bruisers. or slayers. or whatever they're called. the group of champions including

bloop
(lemme know if I miss a few) whose sole job it is to dive the backline and smack a few squishies to death with their swords before either dying or nabbing the penta. often building adc items and pushing towers in their spare time, this class needs some changes and I think after the tank update, the next preseason should be the time to do it.
now I'm not saying this because I hate any of them (though they can be a nuisance) I say it because they're BORING.
let me know if this sounds familiar. step 1: find fight and identify squishies. step 2: use dash into fight. step 3: use any cc available. step 4: proceed to whack the nearest target into submission. step 6: now do the same for any other champions in the vicinity.
this play pattern could really use what the other class reworks did for their respective champions in giving them specific things they excel at and varying ways they go about their murder business.
I'd love to see this somehow varied yet linear class be given some love and maybe changes to make them healthier to play against. as it is now they're a group of moderately hard to kill mobile jack of all trades types that are very bursty against squishy champions, but since all their big burst is tied into auto attacks they also have a fair amount of dps. essentially they kill everyone they see and aren't all that easy to kill because they hit their damage spikes earlier than other champions and can quite happily build several tank items to become tanky initiators should they wish.