A recent e-mail was sent out from Fan Fusion with some nuggets of information regarding the 2021 convention.
Tickets are currently on sale for 2021 and can be purchased right here. Here is the breakdown on pricing:
Hotel reservations will open up sometime between December and January
Guest announcements will begin sometime between January and February
The e-mail also addressed the con being 3 days instead of the usual 4:
This is an issue of availability at the Convention Center. All of the events scheduled from March through the fall at the Convention Center so far are being rescheduled into 2021 and 2022 utilizing dates that may normally be available to us. We loved offering the preview night for many years but we would rather host a shorter show than not have one at all.