During the 'Tour of the North' trailer we actually saw players running along the road that leads up to Idyllshire so I'm actually wondering if that separate zone will eventually be merged with the Hinterlands. Unlike Rev Toll, however, Idyllshire is going to be directly facing off against Alexander (he'll be summoned up river from the city, under that huge barrier) so I won't be surprised if we actually see Idyllshire take some damage as well.