-Veronica has new dialogue options after you beat the DLC and can get 1 of 2 new perks depending on what you say.
Pretty much confirms the suspicions I had after the trailer.
-The Nightkin companion is schizophrenic and has two personalities, Dog and God. Both have their own perk.
-The human companion is named Christine, and is described as mute but intelligent.
-The ghoul companion is a lounge singer named Dean. You may have seen him on posters or load screens in the main game.
The Nightkin sounds like a [censored] blast. The others sound pretty good as well.