BillieBob - you say "To fly an EASA aircraft, you will, not unreasonably, need an EASA licence. This may be obtained by exchanging your UK national licence for the JAA equivalent (which is deemed to be an EASA licence) prior to the enabling Regulation coming into force or by meeting the requirements of Part FCL for the issue of an EASA licence thereafter."
I currently fly a motorglider - which is an EASA aircraft - on an NPPL. Are you saying that I can (have to?) convert my NPPL to a JAR licence as a paperwork exercise?