My understanding is that there are recency rules in Australia. My guess is that they’ll be complied with.
As to pilot ‘mental health assessments’, I have to say that these days I do not underestimate CASA Avmed’s capacity to turn any perceived risk into a potential disaster. And CASA Avmed will undoubtedly be licking its bureaucratic lips at the busy-work that will arise from Covid19-related infection and vaccine risks.