Having 3 zones to level in between 110-120 feels very limiting. It'd be cool if we could do what we do in Battle of Dazar'alor and swap faction to "see what transpired", thereby letting us level up on the other continent. At least on alts once we've finished our War Campaign once on our mains.

Earn an achievement when you complete your faction's War Campaign on your main.Unlock the ability to swap faction temporarily on an alt to level up in the enemy zones instead. Probably comes with a long cooldown or a hefty price so you can't just swap between them for double rewards, etc.I imagine this could be done with some NPC, perhaps a spy or chrono mage, transforming you or "sending you back a few days in time to see what happened".