So with the world servers resetting, its possible to re-run vault10.
Things you need:
1. Your faction needs to gain control of wintergrasp
2. Alt +F4 once you gain control
3. Quickly log in and get to vault (you will have the essence debuff even though it reset allowing you to run vault)
4. Kick his ass and get loot!
5. This has been repeatable as horde on Warsong server twice so far, there hasn't been a message stating that we were saved to the raid!!!! GOGO!