For most of this you are fine but when you get to the last boss there are a couple bugs.
1: If you die the npc with you that is not the one you selected at your factions base camp will not respawn . No biggie if you keep moving the whole fight but would speed things up if they did respawn.
2: Upon killing Lady Zharessa .First Arcanist Thalyssra is stuck in a cliff and quest can not be turned in. Not sure if the same happens with Jaina but guessing it probably does.