The Horde and the Alliance will take turns either invading or defending a zone on their continent. Neither continent will be attacked two times in a row, as each new incursion will be treated as a retaliation for the previous assault. How to Locate an Incursion While the continents are
To locate the Tortollan Seekers Emissary on Zandalar. You need to make your way to Zuldazar. Situated in ruins south of Nesingwary's Trek, and between Tal'Gurub and the east coast, is the Tortollan Seekers encampment, Scaletrader Post. To hand in the Horde Tortollan Seekers world quests.