Originally Posted by
Aktec
You should have a quest to go to Stormwind and onto Silithus where you can upgrade your artifact to a high level so do that 1st imo cause it will make your char more powerful. But after that its really its up to you, if you wanna get geared up a bit should head to argus, if you want to complete the class campaign and get your title and mount keep going with class order quests and broken shore.
Gotta ask yourself whats your goal? Wanna go do the raid? - gear up as much as possible and jump onto the grp finder.
Or experience a bit of the story? - go for class order quests/suramar