As of now i see only Haye with the tools to beat Wladimir. A combination of speed and power is needed to get to Wlad. Plus his unorthodox style makes it very difficult for Wlad to read him. I do not say that Haye is the favourite in this one. But if you look at the current state of the division, he imo has the best chance to beat Wladimir. Nevertheless off course Wlad is the favourite. I see it something like 60/40 in favour of Wlad.
If a speedy southpaw named Chris Byrd failed to outbox either Klitschko, I highly doubt that Chris Byrd Jr. aka Eddie Chambers can do so. Someone who wins a majority decision against such a "masterful" boxer as Samuel Peter or a split decision against Calvin Brock doesn't outpoint a Klitschko
The heavyweight division is devoid of any spectacular, up and coming talent right now..you can forget about Areolla and Haye..Klitschko would do well if he just went along the path of his "Bum of the Month Club". Someone whom you least expect it might pull off a shocker however, but really I just don't see it.
Roy Jones JR, Roy at heavy has never been beat, he was a world heavyweight champ which never lost his WBA belt, at heavy roy never shown weakness and the speed would easily be to much for wlad, roy jones jr is the man you need!
Helenius, Fury or Price. But it would take time, atleast 4 years..necessary wlad don't fight then anymore