Not sure about this, but two things suggest it might show up in the dlc:

Play him a little longer and you’ll see that he has a heart of gold. :)

I’d put MacCready at #1...to me he has the richest backstory, has fun, goofball dialogue, and just seems more interactive. For example, if he sees a threat, he’ll often say “over here” and run in that direction. With Danse, he’ll usually just start shooting. That said, when they’re both at my settlement, Danse does…