Hallo!
maybe some chosen patches could be converted to work standalone, but it would be lots of work ... and introduce new bugs. some systems like the fx-library system for the mixer were specially developed that different users can develop effects without touching the mixer itself. somehow that wouldn't make sense in a standalone version.
you don't have to convert them - you could add them as they are, so they would work with netpd and are included in pd-extended ...
But I don't know much about netpd so I migth be wrong ...
LG Georg