Just finished catching up the msq to death unto dawn. While we wait for EW launch, I decided to unlock Bozja for leveling purposes. However, I didn't do any alliance raid quests since the crystal tower.

When I look up the requirement to unlock the Bozja quest 'Where Eagle Nests' I found out I need to first unlock 'The Bozja Incident' which it also has a prerequisite questline to finish, from Hail to the queen all the way leading me back to Kugane for the quest 'Dramatis Personae'.

There comes my question, I was expecting it would lead me back to heavensward since my last stop was crystal tower in ARR, are the heavensward's alliance raids stand alone content?

Anyway it seems unlocking bozja is a long way for me. I hope the story is fun!