At the moment the JBC have only agreed to consider it, though it does seem likely that they will push it through with the idea being that the title will be the "first step" for some fighters climbing the rankings. It would give an incentive for youngsters to face off domestically rather than waiting for an opportunity at the main Japanese title and could also, potentially, give youngsters some longer distance bouts before fighting for a Japanese of OPBF title.
Although idea does sound like it will go through it has had some fans suggest that it's another title for the sake of having titles, and that perhaps fighters should be looking to fight for the already established titles, such as the regular Japanese title, the OPBF title or the accepted WBC Youth title. There's also the option of fighting outside of Japan for any of the numerous titles out there, along with their silver or interim iterations.
We're yet to see whether the JBC will accept the idea or not, but we suspect we will find out in the coming weeks.