Looking at the map itself, which Adriacraft have provided an overhead screenshot of, this seems like a far smaller map than the previously datamined Defense of the Alehouse. It's likely for 10 or so players, and appears to have, or intend to have, two bases, as well as at least two resource nodes. Given the name of the battleground file, it's possible that these are gold mines, but from the map there are three small golden bits in the middle, also visible at five seconds into the video, so perhaps it's a spawning node capture.
Stevan also informed us that there are human models in the patch 5.2 PTR files, and therefore speculated that this battleground could have NPCs in it, bringing gold to players, who might have to defend resources that allow the NPCs to carry out their task. Or, to bring my own speculation into it, perhaps there are mines or nodes that can be captured, which permit players to ferry gold back and forth, and the NPCs mine up the nodes or gold.
Naturally, this is datamined information, and should be treated accordingly, not as confirmation of any new element of the game. But, it's fun to speculate, and encouraging indeed to see new PvP content appearing in the patch 5.2 PTR.
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