According to Jin Air's official twitter, Pigbaby has returned to the team. There's also some information about Fly leaving their LoL team or something, whatever.
Pigbaby left Jin Air in April 2014 to pursue a career in WCS AM. While he won WCS AM S2 with an outstanding performance including a memorable final against Bomber, Pigbaby was unable to find a foreign team or personal sponsor. According to Dailygame, the new WCS system was one of the main reasons for his return to Jin Air.