Though this is really a good thing for I have think that NBA might not yet comeback this year or may have on December 2020.
They can't afford that, their will be a lot of people working under the organization that will struggle because of no income, and this would not gonna help the economy of the US which has been struggling now due to the big number of cases on covid-19.
I believe they will really push NBA to resume, but of course with proper measures since they will not get the approval if they have no safety measures in place just to ensure no transmission of covid-19 is going to happen again.