“The beginning of the final arc of The Icebrood Saga begins Thursday, November 17, with the first of four chapters, titled Truce. In light of the threat posed by Jormag and the icebrood, a new, more prominent enemy stirs beneath Tyria as the forces of fire and conflagration emerge with the elder dragon Primordus at their head.” – Jonas Ek, TGG.
Source: N4G PC The Icebrood Sagas multichapter finale begins on November 17th in GW2 with Chapter 1: Truce