I would love to see itemization reworks that make "melee carries" viable, such as Fiora or GP. I believe that the current state of being of ranged AD is far too dominant and leaves very little room for variety in team compositions :/
Yeah, there needs to be some items that address the issues with melee carries, without also allowing those items on ranged carries. I think whole, red buff+frozen mallet slowing more for a melee target is a good idea, but more needs to be done. The other problem is if you get a really good item for melee carries, it needs to be unviable for tanky dps and tanks, or you go back to that meta of all tanky dps, all the time.