I just finished the priest campaign for the seeker, which means I've completed 7/12 campaigns, with my druid, dh, and hunter each on their Legionfall Mission quest. I'm working to complete all 12 fairly soon (still need to level Paladin/Warlock) because I enjoy the campaigns/learning the stories tied to the classes.
So
* How many of these have you completed so far?
* Are you also going to try and get all of the Concordance mounts/pets as I am by expansion's end?
* Do you look forward to/hope for more class campaign content after 7.3 (Blizzard has said classes won't progress their story in the next major patch)?