The General Session initial (or community selected) list has been released. These are the sessions submitted by speakers from across the world. The selected list is the best possible variety of sessions that the PASS Program Community feels is optimal for the conference.
The additional sessions that probably be added later are from Microsoft speakers or requested sessions to fill the gap to provide the best Microsoft Data Platform training.
The Summit website provides options to view Spotlight sessions, a Speakers list, Pre-Conference Sessions and Learning paths. If you have never been to a PASS Summit, the Learning Paths are probably your best start. Get on Twitter and ask questions using the hash tag #SQLPass and you can get advice about selecting session. There are plenty of people to get sound guidance.
Also, the recorded sessions will be available for about 12 months if you are split between sessions that end up at the same date and time. The dates and times have not been released, yet.