Rumour has it that a class action against CASA will be underway in the near future.
Medical situations that have been accepted for years have been "reviewed" and are now being denied with no change in the underlying condition.
Not sure which class action you're referring to - but without going into too much detail let's just say that there's legal preparation well advanced into an AAT appeals case that's shaping up to be quite big. It's regarding colour vision standards that are unnecessarily discriminating against quite a number of experienced pilots.
See
http://www.pprune.org/dg-p-general-a...-rating-3.html for more info.