The first issue of 2014 came out in late November last year, when BBM released its annual Historic Collection offering. This year, the focus is on NPB players who were successful as teenagers - basically, those who went from high school straight into the NPB.
A green parallel of Once Teenages' Now was released for special events. Like the base parallel, these contain "BBM STADIUM EVENT SPECIAL CARD" on the front, and are numbered with an SE- prefix.
By my count, 39 players signed cards for the set, with 40-110 copies per card.