One of the men in contention is current #2 ranked fighter Kenichi Horikawa (28-13-1, 5). He appears to be the preferred option though has to win his upcoming bout, scheduled for July 20th, or else he will lose the opportunity. If he wins his upcoming bout Horikawa will be getting a 4th Japanese title bout, and will be looking to claim his first title.
If Horikawa fails to win his upcoming bout then Ono's opponent will be Atsushi Kakutani (16-4-1, 9), a former world title challenger who is currently ranked #3 by the JBC.
At the moment there is no set date for either possible match up, of course with the JBC and Ono needing to wait for Horikawa's result, though we are expecting the bout in the next few months as opposed to waiting to the end of the year.