I am thinking that these BC battles are going to be on par or harder then the Ultima Weapon BC and 4-2 BC (Both per nerf), which honestly I thought were a blast to play even though I was losing lots of exp and cash everytime we tried. These type of BCs, even if you know how to beat it, it is still one hell of a challenge.
Also from the look of the picture they have with the announcement and the name, I bet the battles are going to take place in the 4 Spire Areas at the end of the Proms. Now that would be one hell of an annoying catch (expect for Prom Vhazl where you can warp to the top after beating it).
Guess we will find out on Wednesday.
And thanks Jagster ^^