Remember that even the all powerful EASA are restricted by existing EU law. Employment laws, discrimination laws, etc.
It is only when someone stands up to them that things change. That usually means the courts of human rights.
with the pension age changing and peoples rights to work longer changing, it is hard for EASA to buck those existing rights without hard evidence that a pilot cannot continue to work on medical reasons if that pilot passes the EASA medicals.
So far from a pilots ability to work being pushed to a younger age I am sure the opposite will be true and it will be extended probably to 70 in years to come.
but that will only happen when some one says NO to EASA and is prepared to be seen to see it through the EU courts
Pace