The World Boss is spawning at the top of the hour. I looked at my map to see where it was going to spawn and there are two different locations for it. Ashava is spawning in Caen Adar and also in The Cauldron. I rode out to both places and Ashava is indeed going to spawn in both places. I know some people want the World Boss to spawn more often but I don’t think this is what they were thinking of.
Imagine the uproar if the WB only spawned in the expansion zone. When this happens they also spawn a boss out in one of the base game zones. Same with Realmwalkers.
Xpac players can farm an extra set of whispers during helltide when it spawns there because there is always one up in the base zones.