My experience in early August was that the general rule at the DVC lounge in Epcot is to admit up to 5 guests per DVC member. (I didn't know this beforehand and assumed it was like Top of the World at BLT where the member plus all guests in same villa could go.)
I am the only owner in my family and we regularly travel as a group of 8. At first the CM said two people would need to stay back since our group did not have a second DVC member. I responded with, "but ... we're all staying together in the same 2br villa?". She checked something on her computer, then happily let us all go up. Not sure if this was pixie dust or not. (She had already swiped my DVC card or typed my name in, so maybe she was able to verify where we were staying.)
Thought this was worth mentioning in case any one else finds themself in a similar situation.