New Zealand just had it's daily covid-19 government update. Our prime minister, Jacinda, indicated she was in talks with Singapore & both governments are discussing what it would require for them to open up their borders to foreign guests. They both right now believe they will only open them up if there is some way to tell if someone is a "threat" - i.e. if they are infected. They are both interested & want to have foreign visitors again, but are holding off until advancements in testing happen. So my guess is with NZ/Singapore, it's going to require some sort of reliable, rapid test: perhaps you get tested before you board the plane, and then get tested before you enter the country, with social distancing on the planes too.
So if some sort of rapid testing can be developed in the next 6-9 months, we could see traveling resume in this region on the world.