He won't. I was membaca up about the situation and it berkata something on the lines as he's not ready to face the fan on stage.... anyway!... I hope so he's soooooooooo hot! and his voice is amazing!
He won't come back because he is better off being a solo singer plus i heard that the rest of 2pm were being really mean to him and that he wants to be friends with him and they aren't friends any more. I don't know why and i think that it's sad and that 2pm have gone down a bit since jay left and i think they should at least try to bring him back and work with him again. but fate has different plan's for jay and that he has been doing really great oleh himself. Maybe even better. But all the best to jay and the rest of the boy's in 2pm.