This speculative article claims that "according to a Japanese source from Sport24" Rika Kihira will not train with Brian Orser due to the travel restrictions and that "Skaters are already preparing for the fact that they will compete only within their own countries.":
Решение Медведевой вернуться в Россию — правильное. В этом году фигуристы посоревнуются только в своих странах - 10 июля 2020 - Sport24
Нас ждет очень жаркий Кубок России.sport24.ru
Seriously. I mean, this is where it's been headed and will likely end up. Cold-weather countries face trying conditions again in the fall leading into winter, where migration indoors will help fuel spikes on new cases that most ISU countries will scramble to manage.
Anything that is held will be national/regional with no impact on international standing or qualifying. China can still hold 'test events' with its own athletes.
I fully expect ISU to announce 2020 as being effectively cancelled coming out if its session. It will hold on to ISU championships for dear life until the last possible moment, then likely scale that back to world's only (revisit location and date if necessary) to salvage the season and qualify countries for Beijing.
Then I'll go one step further. An expanded Olympic qualifier event around October 2021 before GP gets under way. They'll have to figure out rules from scratch to be fair to the countries who couldn't send athletes to world's.
That's prob the most the ISU could take on.