It could be a place holder. First Srike for Black ops came out February 1 and Escalation came out March 5. That's about a month. It could be possible.
Yeah, they're going to put place holder names on a "official" map pack poster. It is obviously fake.
Yeah, the map names completely give it away. Water? Plane? C'mon. Other than that it's a VERY convincing fake; if he had put more realistic map names I would've bought it.