As a Ranged Ad player, I would like to know what's in store for them, I feel there are things that will benefit bruisers and assasins, And this item seems gonna make AP a lot more powerfull.
I didn't see a single item that I went "Awesome for ranged AD". The only thing I saw is a nerf to trinity force for ranged (and item that Corki, ezreal, Miss fortune, and ocasionally vayne and others enjoyed). And the nerf to phantom dancer that ranged ad suffered a while ago. The poor class wants some love.
On the support side, why I do not think they need love, I think it's kind of boring that supports basically have to go Prospector ring, Mercury, Frozen hearth, Sweeper, Abyssal, Trinity force (oh was nerfed for many of them), Aegis, every single game, because those are the only options they have.
Also, It worries me the effect it will have on amumu. My build will be Frozen hearth, abyssal, this item.