International borders all around the world are closed. International travel is almost completely shut down.
It's a very long way off. But there will be a time where large scale gatherings are permitted again.
But what will come first? International travel, or large scale gatherings?
There could be a scenario where large scale gatherings are permitted, but not international travel.
Could that open up a possibility for the return of the hologram? Artists that are unable to tour could perform without having to travel.
Multiple cities could be performed to simultaneously (provided in a similar timezone).
Not a replacement by any means, but would it be better than nothing?