The 29 September files show the nine class trees built on the modern trait system with a 51-point currency spent between 10 and 60 and gates at every five points. Two hidden currencies track recent talent and Legacy resets, each capped at ten charges, recharging every hour and every week respectively. That explains the beta's 1 silver respec after an hour and the 5 gold respec when used quickly.
Unattached fragments in the files (a 16-node Elemental tree and a 36-node Druid tree) were work in progress, and the Legacy trees carried slots marked for a future update.