Creation Entertainment announced that the Supernatural Convention in Nashville has been postponed until August 14-16. Ticket sales have temporarily been taken off but will be back soon.
— Creation Entertainment (@CreationEnt) March 16, 2020
The convention will still take place at the Gaylord Opryland Hotel at the new date. Creation is working on confirming with each of the guests but as of right now, Jensen Ackles, Jared Padalecki, Misha Collins, Alexander Calvert, Ruth Connell, and Briana Buckmaster are scheduled to appear at the new August dates.
Creation will be honoring all Nashville admission passes, meaning you can keep your seat, and a la carte autographs and photo op tickets for the new date. If you are unable to attend August 14-16, you can contact them at firstname.lastname@example.org.
You can find more information from their website.