Adonis Stevenson and Sergey Kovalev won't be squaring off next, but it looks like HBO is trying to build to that fight, as it's being reported that a doubleheader from Quebec will take place on November 30, with both fighters defending their belts.
Stevenson (22-1, 19 KO) would make his mandatory WBC title defense against Tony Bellew (20-1-1, 12 KO), a fight that was contractually agreed to by both Stevenson and his last foe Tavoris Cloud before their September 28 fight. The winner of that had to agree to face England's Bellew by the end of 2013, and it looks like that's happening as planned.
Kovalev (22-0-1, 20 KO) would defend his newly-won WBO title for the first time against Ismayl Sillakh (21-1, 17 KO). Sillakh, 28, was considered a fast-rising star in the division before an upset loss to Denis Grachev in April 2012, but he's come back with four straight wins since then, though none against quality opposition. The Ukrainian is certainly a dangerous opponent, though; his talent was not imagined, he can punch, and really, the Grachev fight was one that he simply let get away from him, where he'd largely dominated before getting hammered down in the eighth round.
If Stevenson and Kovalev both were to win, there's no guarantee they'd fight after that, but it would certainly be the most obvious big fight for them. HBO is investing in both fighters right now, and the network clearly wants that fight. That's where the money will be.