There’s this idea out there that ‘once this is over’ (whatever this is, the first phase of lockdowns or the immediate virus threat) travel will turn back on like a light switch. I do not expect that to happen.
More travel will start back up domestically. International travel will take a lot longer to recover. Some parts of the world won’t get through the virus as quickly as others. It’ll take longer for some governments to lift restrictions than it will for others.
However lifting of outright bans alone won’t mean it’s as simple to just buy a plane ticket and ago, provided you have a passport, the way it was before for many destinations.