Gamboa Saul Alvarez Amir Khan Juanma Ward Dawson (Rigondeaux will be past prime by 2015, but like Bradley is still P4P top 10 material by then)
Andre Direll i think can gain enough experience in that time to be up there as the experience i think can really help him even if he suffers some more defeats in the meantime.
My money right now would be Devon Alexander. If he can get moving fast enough after 2012, perhaps Vasyl Lomachenko.