As far as I know as long as you keep paying the fee's then you can stay.
Very sad, I remember a thriving club with around 200 active member's in the early to mid 90's.
They are betting on the new Donald Trump golf complex, and and they smell the money that they assume will come pouring in with squadrons of Gulfstreams and BBJ's from the States; therefore they really don't want flying club people hanging around. Aberdeen may be pretty busy at the moment with the orgy of oil related flights, but as before, it wont last and will soon return to a barron airfield with the occasional Jetstream from Eastern! Sadly GA will be pretty much gone.