It is floating around on tumblr that Hongseok is training for debut under YNB. Does anyone have any clearer details?

I so hope this is true! And hope he finds huge amounts of love and success! *toes crossed, fingers crossed, pigtails crossed, legs crossed, arms crossed etc.*

P.S. I was thinking it would be wonderful if Yoosu, #GUN, and Hongseok debuted together, wouldn't it be dreamy? (I am not over Gun, and really liked Yoosu's tone!)