I wouldn't necessarily assume that this will be a positive thing. If it is true, then we will indeed be short of airbus crews.
I would expect that the duty waiver will appear fairly soon, authorising about 15 "one off" situations where we can extend our duties, reduce our turnarounds or increase our hours to cover the shortfall for the next 10 years or so.
The end result will be that we will still have a JAR compliant airline, with a couple of waivers " just to get us through this difficult period", like the Sydney waiver that became the Brisbane waiver that will likely again become the Sydney waiver as a "one off, to help us through the establishment of a new pairing"
Lets hope I'm wrong, but history shows that whenever commercial expediency and regulatory requirements come into conflict, there is usually a make shift resolution in favour of commercial expediency.