I had the same question and called BBB to ask. The CM was uncertain and put me on hold to ask. She kept thinking what others here are thinking, that we wanted all 8 of us actually IN BBB, but I just wanted to know if they could come in the park with us. MIL wants us to stay all together and it would be neat to get some pics of the empty park. We never intended on all of us going INTO BBB, they will most likely relax, take pictures, and wait for us.
The CM came back on the line and told me that they would let us all in the park for an early appointment, but by the response I have gotten on the DIS, I'm not completely confident that they will.