2016-10-16 00:09:40 UTC
The conference being broken up by agents of the Great Intelligence, but not before Clara learns the coordinates to Tranzalore, the Doctor's burial planet. The Doctor's friends will be lost forevermore, if he doesn't go to Tranzalore.
The Doctor going to Tranzalore, over the TARDIS' objections. He has to turn off the anti-grav to gain a landing.
The Doctor's grave, which is an expanded TARDIS.