The first of those is ear marked for the fall, with mid-September being eyed as the most likely option. For this first defense of his title he will be allowed to negotiate freely with possible opponents in what is a voluntary defense of his title. Knowing Ioka we're not expecting an elite tier fighter, for example Roman Gonzalez or Juan Francisco Estrada, but a very capable foe. We do however know that Ioka is interested in a rematch with IBF champion Amnat Ruenroeng, the only man to have beaten the Japanese fighter.
The second of those, as is customary now, will see Ioka fighting on New Year's Eve on a monstrous TBS show which is likely to be packed with at least 1 other notable bout. This bout won't be a voluntary and is instead set to be his anticipated rematch with Argentinian fighter Juan Carlos Reveco (35-2, 19). This bout has been ordered by the WBA following complaints from Reveco's team about the decision in their bout from earlier this year.
The first bout between Ioka and Reveco was a solid fight fought at a very high skill level. It saw Ioka taking a very narrow majority decision that was criticised by some in the media, notably Ring Magazine and TYC Sports, though supported by others. One thing that was universally agreed was that it was competitive and fought by two men who were matched, as they will likely be in their rematch.
(Image courtesy of the Ioka gym blog)