It's called "teasing the playerbase" Gwynzer.  We've actually had a long tradition of letting slip various pieces of information, whether it is in the mapnames appearing, stuff far in the background in screenshots, subtle clues and hints on the forums, etc.  Some of it is caught and picked up on, a lot of it is not.

I personally don't think that them knowing the name of a map is going to violently disrupt the mod.  Indeed they're welcome to speculate as to what could possibly be coming and shout ideas if they have any.  Not that we'll reveal how close or far from the truth they are until the release anyway

Fear the Woodzilla