This quest line does in fact require that you run Belathis Fortress (EZ Mode) to move on to the newest zone. If you need help let me know and I'll see if I can't get a party together to run you through. This list isn't quite complete as I can't remember the last few quest names right off the top of my head. Hopefully I"ll have them up soon-ish.
The General’s Strategy
Starts at Kargath Duran (17.9 / 50.00 Old Border of Wylant, Syrbal Pass). Go to npc Boleeda.
1,221,300 XP /122,130 TP
A Secret Meeting
Use Leaf of Wind and you get transported to...