I personally think the next wave of ripoffs will be of Kurt Travis in A Lot Like Birds. Dude is doing some cool, original vocal stylings for the post hardcore genre he's in.
This. Kurt's another example of how the high pitched whines are fading in favor of deeper vocals. The dude is really starting to develop a signature sound, abs the ALLB and solo records show some really creative melodies.
I know this band gets a lot of trash talk, but Hance from Woe Is Me is yet another vocalist that's doing different things. Band could have chosen any Green imitator they wanted, but they grabbed a legitimately talented guy.