Funny! These were exactly the last three classes I tried, precisely in this order. 
After a druid, warrior, mage, and hunter (of which only the mage and the druid got anywhere, I abandoned the others at some point), I boosted a discipline priest to 90 in MoP. She was a hell of a raid healer, though all in all I still prefered my resto druid in this role. 
And now on coming back I tried a shaman and monk. So far I havenāt much warmed to the shaman, she seems much like a mage/druid mix, and I havenāt yet figured out when and where to place those blasted totems. The monk, however, could be fun. 
Packs a punch and has a decent self-healing spell. I just canāt figure out whether itās meant to be a ranged or melee class ā¦
Well, I got to āGet Your Bearingsā, not without unexpected difficulty mind you! For since I had seen all this just a few days ago, I cancelled all those lengthy videos. Should work, shouldnāt it? Well, didnāt at the end of āOut Like Flynnā, because when I cancelled the video after we took off in the boat, it left me stranded on the water out in the middle of nowhere with these two guys, Flynn and Taelia, and a boat that wouldnāt move and that I couldnāt leave either. All I could do is wait until I died of out on the blue water fatigue, do a corpse run back to the boat location, and try to swim to shore, quite a way, and I died again in the process. Finally landed on the wrong side of the island and had to ride all the way back into Boralus! 
I think Iāll continue this after a good rest in an inn ā¦ before I mess up again. 
Well, I did the quest line exactly as described, up to and including āA Nation Dividedā, and the scouting map has become clickable, I could start exactly one new quest line from there, which by the by seems to be the one I already did on the other char. No Chromie quest though. 
And just to be sure, went to Stormwind to checkāChromie still doesnāt talk to me.
Guess this just isnāt meant to work.
On a whim I picked up āThe Missionā, even though it sounded so familiar, and realized to late that itās familiar because itās the opening quest for the Jade Forest story line in Pandaria. Wonder why I would be able to quest in Pandaria but no other expansion? Anyway, it seems now Iām stuck on that continent, and Iāve already done every last quest here seven years ago.
Turns out I found a portal back to Stormwind right where I was sitting while writing the above. So now back in Boralus, or rather outside resigning myself to questing in this vicinity ā¦ if I stick around. 
Well, at least I went out in a different direction this time. And soloāed (sp?) another quest suggested for 3 players. This death kick thing on the monk is really something. Two big bad guys, and one just dropped dead 3 s into the fight. 