It would be cool if they'd put in a good chunk of side quests that are unique to each class. Not taken from the guilds, but from the citizenry. Even just a quest or two every couple of levels that are specific to each class. You'd get more depth about each class' role in society, more life to the world, and a bit of a break from the monotony.
Or open up dailies/repeatables (with more story to them than leves/hests) earlier on. Beastmen dailies are a nice bit of spice, but they come too late to keep interest piqued as you're starting a new class. Those get monotonous, too, but only because there's such a limited selection at each tier. If they'd bring the same total number selected at random, without any tiers, it wouldn't get boring quite so quickly.