Head coach Wayne Pivac concedes Wales may still be unable to play at the Principality Stadium when they return to action.
The Cardiff venue is currently a field hospital, which was opened on April 20 to meet the increased demand for beds during the coronavirus pandemic.
There is no timeframe for rugby's return and Pivac admitted Wales side could be left without a ground.
"It'll be nice when we get back there but it's the sort of thing you have to work from scenario a or scenario b," he said.
"One would be getting back to play at the stadium, if available, and the hospital could be there if there was a second wave of the virus. We're not sure of the timings and we're all up in the air, it'll be a special day when we do get back.
"It's mind blowing to think a number of weeks ago we were training at the Principality and now they are set up as a hospital. It shows the amazing work by people to make it happen in a short time."
Meanwhile, Pivac is keen to see the global rugby calendar changed with Wales backing current World Rugby chairman Sir Bill Beaumont to stay in position.
Voting closes today and the WRU revealed their three votes would go to Beaumont ahead of rival Agustin Pichot.
Pivac added: "The global season is one we would all like to see come under scrutiny and come up with something which is suitable for northern and south hemisphere rugby."