My wife and I are planning on playing new characters for Shadowlands, with the intent on going through the new player experience, and then leveling up in Burning Crusade since that is the last expansion she has played (and she wants to see Zangarmarsh again). I currently have a level 120 on live, and she has a old character from BC.
My question, since accounts have to “complete BFA” before being able to use the choose your own expansion leveling experience, what is the actual flag to the account? Do you just have to have a 120 before the level squash? Have a level 50 after the prepatch? Complete some quest in BFA?
Also, would paying for a boosted character on a brand new account, then creating a new character satisfy the flag to level in whatever expansion?