I just read a lengthy legal-like document from Eventbrite aka Corgi Events LLC, that DenFur 2020 is still most likely happening, albeit with improved heath measures. Yeah right.
They are apparently legally bound to do the furcon, and apparently this may be true for most cons. If the con is canceled, they pay out of their pockets all the costs to hotels and other groups such as city and state governments.
I will bet DenFur happens. I'm not sure it should. I got bad con crud there last year.