DrupalCon Denver will have a preliminary schedule of official sessions published December 7th. That's in one week! To avoid publishing a Google Spreadsheet we'll need to decide how the schedule will look and build the necessary components.
The Drupal community has put on nine "DrupalCons" before (not counting joint conferences), growing from just dozens of people to now an established, international professional event at last height of nearly 4,000, at DrupalCon Chicago.