One nice thing to note about doing the Darkshore WQs is the reward of 210 weapons. For several of my alts these were great replacements for dead artifacts. It's still possible to pursue relics for artifacts for i-level updates, but not nearly as easily.
I did note that on completing the quest chain on my heroic Antorus geared main, that I'm not seeing the WQs on my map. I mean, I'd have no reason to pursue 210 gear, but still. Sweetums found forum posts saying the map might not be showing quest areas that are actually there. But I've only seen them on "undergeared" alts who could benefit so far.
Also, the gear drops do not seem to have any draw for transmog. The only set I worked at getting all of, for my hunter, all has the appearance of the base initial set of hunter gear.