Well no, for legal reasons it's not possible. That would be a blatant copyright infringement and it wouldn't be allowed to be distributed. Besides, what would be the point? Just use the official DLC. It would be too much trouble to simply make a copy of one.
"
Yes it is possible, with an experienced team" who will need to appropriated all the DLC content and quests into a separate mod. "
but no it wont happen" because nobody would actually do that "
for obvious reasons" as clarified above.
Just to clarify that I wasn't condoning it by your misquote. The OP obviously knows it's illegal. But technically, it is possible. I think.