I think the most logical choice would be the winner of Wand/Akiyama, but they're not fighting until the end of February which means a match with Bisping probably wouldn't happend until May or June. That would be a pretty long layoff for Bisping. Only other guy that comes to mind is Yushin Okami, but It doesn't make much sense to match him up with Bisping when he's coming off of a loss.