The conference on September 20th will be opened with a keynote delivered by Will Thompson from the Power BI Product Team. The keynote will focus on the Strategy, Vision, and Roadmap for Power BI and Will might even be joined by one or more of his Microsoft colleagues to showcase new and exciting Power BI features.
If you participate in the full conference, then you can also attend the Ask Me Anything session on September 19th, where Will Thompson makes himself available for your questions. The session is indented to be informal and is scheduled to happen after the training days and before the evening dinner.