-some snippage-
You will have some advantages because of your "historical" vantage point
(don't take it badly ;-)). As systems always evolve, what we do today is
directly derived from what we did yesterday, so you will easily grasp some
concepts that the young whippersnappers have difficulty wrapping their
minds around. Of course, there will be entirely new concepts to learn -
like RNP, or ADS-b, but the learning was always part of the satisfaction
in
flying.
Don't forget Class A, Class C, Class D, etc

My dad is just now getting
to the point he doesn't refer to airspace using pre-1990 terms
jf