WoW:API GetBattlefieldInfo

Returns information about the Battlefield when you are in the queue.

Usage GetBattlefieldInfo(index)

  The index seems unnecessary. Placing nothing in the parenthesis seems to return the same values when tried with 1, 2, 3...

Returns arg1 - arg9

  arg1
   The name of the Battlefield you are in line for
  arg2
   The story text in the information for the Battlefield.
  arg3
   The lowest level to join in the Battlegrounds.
  arg4
   The highest level to join in the Battlegrounds.
  arg5
   Unknown. Returned -1 on test.
  arg6
   Unknown. Returned 0.
  arg7
   Unknown. Returned 0.
  arg8
   Lowest level for the instance you will be joining (eg: in Warsong Gulch, lvl41-50 game, returns 41)
  arg9
   Highest level for the instance you will be joining. (see note above)