Quote Originally Posted by MrThinker View Post
Bad news, the latest details about NG+ we heard through interviews and live letters amongst other things, was that Shadowbringers would not yet be replayable at the feature's launch.



Good news, the latest details we have heard blah blah, was that this is indeed how NG+ would work. You can select to 'restart' one entire expansion's worth of quests (from x.0 to final story patch before next expac). This feature would be available for ARR, HW and SB. ShB would be added later.
Well it'll be a while longer then BUT it'll happen eventually so there is that.