Earlier today a Japanese sports paper ran story suggesting two things about that bout.
Firstly they expected the contest to take place this coming July, though we suspect it could be a little bit later if more time is needed. They also suggested that the bout would take place in Haskins' homeland of the UK, at least according to a quote attributed to Iwasa's manager Celes Kobayashi who suggested Iwasa would have to "go into enemy territory" for the bout.
A recent blog post by Iwasa suggests that the venue and date aren't set as of yet though it does appear that negotiations are on going and both teams are actively doing what they can to make the bout sooner rather than later.
For both men it will be their first world title bout, though both have fought men who have claimed world titles. Iwasa's sole loss came to current WBC champion Shinsuke Yamanaka whilst Haskins holds wins over former IBF and current WBA champion Jamie McDonnell as well as Stuart Hall, another former IBF champion.
Ryosuke Iwasa to fight Lee Haskin's for IBF interim Bantamweight title!
Ryosuke Iwasa officially vacates the OPBF Bantamweight title
(Image courtesy of http://www.celes-gym.com)