Business/private aviation is in a much better position than airlines.
Asia/China is slowly starting to run and the demand for charter/private flights is quite high, nevertheless as already mentioned here, there are many restrictions when flying from one country to another due to permissions, overflies entry restrictions for passengers and crews.
One thing is for sure, companies and wealthy individuals will see the added value of using a business jet based on the current problems, but there are problems to be solved. In Asia the use of business jets needs to evolve and be seen as a positive thing for the country and not as a luxury for the wealthy. The number of companies and operators was severely affected in Asia since mid 2018, some companies just faded away, a lot of pilots (expats) returned back to their countries....this is to say the start will not be easy, whoever was able to survive will have an amazing competitive advantage.
This crisis will shake many week operators/companies with week structures and practices. Operators like NetJets, Flexjet, Vistajet and similar ones, will be able to start operating as soon as demand increases because they actually never stopped completely.
The effect on the different types of operators (fractional, charter, management) will be completely different and only the viable structures will survive.