The bout in question will see former 2-weight world champion Kazuto Ioka (16-1, 10) battle against WBA Flyweight champion Juan Carlos Reveco (35-1, 19) in an attempt to become the second ever Japanese born 3-weight world champion, following in the footsteps of Koki Kameda.
According to http://piramideinformativa.com, an Argentinian website, the bout is now set for April 22nd and will take place in Japan which will see Reveco returning to the country for the first time since he defeated Masayuki Kuroda, back in February 2013. It will also see Reveco fighting for the first time since he stopped Thailand's Yodmongkol Vor Saengthep back in December in a bout that saw both men being dropped.
Although the Argentinian site doesn't state a venue it's hard to see the bout being fought anywhere but the Bodymaker Colosseum in Osaka where Ioka has fought 7 of his last 8 bouts. It's also fair to assume that this show will also feature the Japanese Super Flyweight title bout between defending champion, and Ioka stablemate, Sho Ishida (18-0, 10) and mandatory challenger Taiki Eto (14-3, 10) and may also feature Ryo Miyazaki (22-1-3, 13), possibly in a world title fight of his own.
Whilst the show hasn't yet been formerly announced by the Ioka Gym we suspect they will confirm the date, or announce a different one, early in February after they return from a short training camp in Hawaii, which is where the picture was taken.
(Image courtesy of the Ioka gym blog)
P.S-Huge thanks to Massimo for bringing this story to our attention. It's honestly appreciated and we're so sorry for not including you're name when the article was originally posted.