Thought I'd mention this because it may or may not be a sign of what's to come for Gen Con 2021.
It looks like the 2021 Indiana Comic Convention got rescheduled from May to October.
My guess is that they're trying to give themselves some wiggle room time, given that a hypothetical COVID vaccine isn't expected for wide availability until April at the earliest.
Not much of a website, currently... Mostly dead links.
I have a friend who runs an event center. Right now you can't hardly book anyone including the B & C listers. So to say anyone of importance will be there is pointless. Worse of all, for an event like a Comic con, they are the main draws.