Each Guild Wars campaign has a title for various 100%s. Completing the campaign nets you a Hall of Monuments trophy but no title. Completing all campaign missions with all bonuses is the Protector title, then Guardian if you do so in hard mode. Kill every monster in every zone in hard mode to get Vanquisher, and uncover the entire map to get Cartographer. Capturing every elite skill is another.
Then there are meta-titles. There are titles for getting all the Vanquisher titles, all the Cartography, all the elite skills, and for combined Protector and Guardian. The real meta-title is “Kind of a Big Deal” through “God Walking Amongst Mere Mortals,” based on your number of maxed titles. Maxed titles plug into the Honor monument, points for your Guild Wars 2 rewards. All of these are good and fine, to the extent that they are sane.
Add Eye of the North to that. Do you need to conquer this new campaign in all ways to complete the meta-titles? What happens if you already have one? And how do dungeons factor in? The developers handled all that with a combined Master of the North title. Missions, dungeons, vanquishing, and cartography add points.
This is poor because of the effort to reward ratio for Eye of the North versus other campaigns. I can take Factions to 100% complete and get six Honor statues in the Hall of Monuments (plus progress on meta-titles), or I can do the same in Eye of the North (with dungeons instead of skill-capping) and get one. Eye of the North has multiple reputation titles, but those are less readily available for the Hall of Monuments than the Factions or Nightfall titles. On the other hand, Eye of the North is rather shorter than, say, Prophecies’ 25 missions and 54 zones.
It is good content, which is intrinsically rewarding, but the extrinsic rewards for 100% completion are lacking relative to the base campaigns. Most of the extrinsic rewards come from the new PvE skills, which make it easier to gain those base campaign rewards.