Even having the vaccine do you still need to isolate for 14 days?
What they are talking about here is no change until April... don't travel unless its really necessary and you should still self isolate for 10 days after coming home.
Assuming the vaccine works, and is as effective as claimed, public health will issue you with an e-vaccination certificate (which actually sounds very Big Brotherish, or like the Mark of the Beast). If you have that e-certificate then, at least here, quarantine restrictions will be eased and there will be limited restrictions for short haul flights
It looks like that it will be a pre-requisite for international air travel. Qantas, BA, Cathy have already said that they will only accept passengers who have taken a vaccine. Makes absolute sense if you and an island like Australia as they want to keep it out, but I think it would be less effective for connected destinations in European Countries. If you fly from Paris to Amsterdam its similar to driving or taking the train.
I think to make it work though, every country has to be on the same page
It will be interesting to see exactly how effective this all is. The Flu shot seems to be <50% effective. In fact, the last 2 times I got the flu shot I also got the flu. I haven't had a flu shot since 2016 and have not had the flu... LOL
For me I'm still planning a trip up to Northern Canada in the summer so I assume that I will need that cert.