That’s the direction we intend to go in Burning Crusade Classic. In Burning Crusade Classic we intend to have world buffs removed at the start of raid encounters.
I realize that’s not exactly what you’re asking for, but I did want to clarify that our intent is to preserve the World Buffs in Classic Era, while moving away from World Buffs in Burning Crusade Classic.
I hope that clarifies things for you!