Attendance will be based off of the team record (in real life or dynasty). If your team is good it'll be packed. If they aren't there will be some empty seats. It won't be overboard though. You won't see half empty stadiums. More like 70% full. The exception to all this is OKC. They're always packed no matter what their record is.
From a dev over at OS. It was talked about in this past week's EASW Podcast.
Hell yes
