I felt sorry for him, but I didn't really pay much attention to him. He's the kind of person you just want to punch if you meet irl, you overlook his problems, his entirely suicidal extreme despression is annoying, there's a reason people hates emos, nobody likes self pity pathetic crying characters, that's one of the reason most heroes in fiction are normally really confident guys who never give up no matter how hard their problems are. This guy however is the total opposite to anything you can admire. Logic would state that we have to feel sympathy towards him and try to cheer him up because he have suffered, but so had everyone else you have encountered, and by huge margins; his problems seem insignificant if you compare him with other stronger characters. This character is being presented to you so you feel superior and as a player you prove him that you will not give up in life no matter what happens. There's no way any game would let you become a piece of depressive crap like him after a traumatic moment.
So yeah, I doubt they will even care to add anything for him in a DLC unless it's to give the poor martyr an equipable noose.