Here's the thing--Japan doesn't have as large of a hit right now. It's just about to get to 1,500 cases (with only 49 deaths!), and that's been about a few months since Japan went hard on the lockdown.
Along with that--things are slowly opening back up in Japan, as Tokyo Disneyland is planning to open on the 20th, and Universal has only extended their closure period to the 12th right now. If Japan and Asia can continue to see the growth, with the measures they've been doing, there is a possibility that SNW could open up for the Summer 2020 crowd. Plus, they've been continually working on it, even during the Virus has closed the park.