From Kiara on the EQ2 Forums at 11:40am PST:
The BG’s should be reopening again shortly.
Please make sure to post in the exiting issue threads in the BG’s forum should you continue to encounter problems. We’ll be monitoring them on our end as well.
I want to give Grats to the people working on BGs. I know there have been some Bumps here and there, but in general. They have brought us Great additional content that works, balanced, and is just silly fun to play. So keep giving them feed back, and the positive attitude.