This year’s Salt Lake Comic Con opened in the Vivint Smart Home Arena with Mark Hamill. Traditionally celebrity panels are held in the Grand Ballroom of the Salt Lake Convention Center, which accomodates around 5,000 people. This year two events (Mark Hamill and William Shatner) were moved to the Arena because it allows for up to 20,000 attendees and is located just west of the convention center.
Nothing definitive yet for the ongoing lawsuit between San Diego Comic-Con and Salt Lake Comic Con. The latest news reported in May says they are working towards a settlement and that a decision is expected to be made by mid-October.
There weren’t 20,000 people in attendance, but the lower bowl and the floor around the stage were almost completely full, with some people bleeding into the upper bowl. I heard one estimate that 10,000 were in attendance for Mark Hamill. Had the event been on Saturday instead of Thursday at 11:00am I’m sure it would have completely filled up, but as it was Mark Hamill had only one day in Salt Lake City before leaving to attend Fan Expo Canada the same weekend.