Most panels will be live streamed on the SW youtube channel (above, the one for 40 Years), or on the Celebration segment of the website shortly before the panels begin.
40 Years of Star Wars
Thursday, April 13th, 11:00 AM - 12:30 PM, EST
With Mark Hamill and Hayden Christensen and possible annoucements of a new Anthology movie (Popular rumors include Ahsoka or Obi-Wan)
The Last Jedi
Friday, April 14th, 11:00 AM - 12:30 PM, EST
Probably the trailer. With Rian Johnson and Kathleen Kennedy.
Mark Hamill's Tribute to Carrie Fisher
Friday, April 14th 5:30 - 6:30 PM, EST
Mark and the fans are here to talk and honor Carrie's memory.
Star Wars Rebels
Saturday, April 15th, 11:00-12:30 EST