Young Bucks will definitely be back, as Amazing Red will too. You could tell in their interviews with Ryan that they were very, very careful in what they were saying, didn't want to burn any bridges at all.
TNA's tag division needs the Young Bucks back, and the X-division needs Red back. Hopefully both are used better than previously.
I don't follow ROH, but I catched a comment somewhere that ROH didn't have any booking for the Young Bucks for the summer, so that could also be proof that they're leaving for TNA?