The new books were in the bundle.
David is going to add the few things in latter to existing products in the bundle so no need to buy anything.
These are some of the old free PDF downloads that were on the old Gun Metal Games website. I put the links if you want to grab them since wayback has the PDFs on an archive copy of the site.
https://web.archive.org/web/20111013...Boston-map.pdf
https://web.archive.org/web/20111013...r-counters.pdf
https://web.archive.org/web/20111213...-1.5-extra.pdf