I believe they said each writer is in charge of the writing for a companion, with one writer having two. So that's 13 companions, I think, if I have my writer count correct. There will also be the ability to recruit mercenaries.
Do you remember where you saw this? If they create 13 companions it will be alright.
I can't remember off the top of my head, I believe it was one of the discussions and not one of the gameplay streams. I'll see if I can find it when I get home tonight.