Hi!
If I were in your shoes I would likely cancel my WestJet flights for August and use the credit for March Break.
I have WestJet credit from March Break this year. I am hoping for December or next March Break.
Regarding the OP of the thread. With what I know now I would go to WDW without a vaccine.
Here in Vancouver I think my DD and I possibly already had coronavirus. So many people coming home from China after Chinese New Year, including a classmate of my daughter. Our symptoms were very similar to the mild symptoms described.
The median age of coronavirus death here in BC is 85. That is higher than life expectancy.
It seems like the people most affected around the world have compromised lungs.
My Dad is high-risk. He wouldn’t want to shut my daughter’s world down indefinitely. It will lead to a severe recession if not a depression if it goes on too long.
Eventually we will likely need to look at the data to better protect those who are high risk, whatever their age, and let the majority of people live outside the best they can. At least in a limited fashion at first. A bit more than grocery stores and drive thrus.