Board Thread:News and Announcements/@comment-26864837-20150812012435/@comment-26888821-20150816000750

TriangleMan wrote: I think he would just pass out for a really long time, going into unconsiousness and then in his unconsiousness, he meets Rose. Almost like when Naruto met his mom :p

This would be my vote, some kind of extended lucid coma while the gem repairs the biological damage. While in that state his mind can wander around the gem and allow him to converse with his mother's stored personality and memories. Though I would imagine this would be some end game series finally episode.