I've been looking all over, and re-reading the Jade Regent guide to running the path for official PFS play, and I'm a bit confused. It would seem that the areas you are to run based on the document:
“The Brinewall Legacy" Brinewall of Winter (areas M–W2) (area A1–P5)
This would cover pretty much the entire module, but you'd be running part 1 after part 2? Am I missing something here, are you supposed to just run the M-W2 dungeon and maybe there is a part after that I'm missing?
Sorry if I'm being a tad dense.