My guess of the features that will be quite strong this patch.

Redemption and edge of night seems strong to me.

Redemption is just for the sheer cost for it. 2100g for a strong passive and active that is a AOE heal and 10% complete true damage seems very cost efficient. Also it somehow scales into lategame. (Finally soraka can enjoy something different)

I fail to see how edge of night wont be abused on a multitude of champions and stay safe. It maybe even potentially worse than previous maw, because now you can stack both items together with a merc treads. Its quite a pain how mages are stuck just with zhonyas.