People wondering about the lack of Star Wars Episode VII at D23 may find this very interesting. Prior to the convention, Disney listed Lucasfilm as a presenter at Saturday’s big Live Action panel. That caused Saturday tickets to sell out on Thursday, because everyone wanted to get in to see that panel. Lucasfilm was right there on the schedule!
Slashfilm posted this comparison image of the schedule from the official D23 smartphone app showing what the schedule looked like on August 3rd and what they changed the schedule to after the fact: