DTD would also be used in adults. It is about the trauma that occurs in childhood. But the consequences are long term. The likelihood of it making it into DSM 5 are very slim. And sadly it is all about politics. Well I guess you get my opinion of that situation.

There is not a diagnosis of complex PTSD in the DSM now (though the concept is talked about), and it will not show up in the new DSM. It would not replace another diagnosis, it would be a new diagnosis.