Owen K. C. Stephens wrote:
We do not present a Pathfinder Unchained rewrite of the fighter class in this book. It isn't the right place to do such a thing, and it would take way too much production time to design and playtest an entire class revision.
That said, the fighter absolutely has a special place in this book (as does the weapon master archetype for the fighter). The advanced weapon mastery rules, for example, give fighters brand new conceptual toys to play with.
This isn't a fighter-only book, since lots of characters can focus on weapon use. But it is very much a new-ways-to-fight magic and keeps tightly linked to combatant options (for example, being the first Player Companion I've developed without a single spell in it, despite offering up ways to fly and teleport).
Fascinating! I look forwards to seeing the new tools with which my people shall crush you pitiful fleshbags!