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?
If it's an SLMG, you'll be able to convert to a LAPL(S).
If it's a TMG, you'll be able to convert to a LAPL(A).
If it's an Annex II 'vintage' motorglider, you'll be able to fly it on a NPPL(SLMG).
Just one small example of the barking nonsense of the whole LAPL...
