No, they were not full and final. In particular, there was another settlement for Tainui over the Waikato River, that was left out of the first settlement, and well flagged at the time (since processed). The 1Bill cap would also have been flagged, but inflation has caught up with it.
Those Treasury boffins love their equations and models. Sometimes they don't get them right, though.
http://www.sharechat.co.nz/article/2...3+January+2018