Yeah maybe.
February 12th IS a tuesday, but that would mean we are waiting 2 weeks longer than expected for the first DLC (all indications have been that it will mirror Black Ops 1s DLC release schedule, which First Strike came out February 1st)
But I'm thinking this is just a model they had and reused in many maps (why else put it on so many maps? i'll be the first to say I sure dont want zombie maps based off those MP maps (or any, its been forever since we had maps based off MP maps. Not counting nuketown) Also, these maps (especially Turbine) were done and finished a long time before release and before Activision ever decided when DLC will release. So I'm just gonna say coincidence.
Also most gamestops I've talked to have said to expect first DLC to be early to mid January (Suck the Christmas noobs in a little longer)