It's long known that this is not the case. It's the same demo Japan got at the end of december.Betting its the 5 min demo on Mercenaries...
http://gbatemp.net/topic/317835-nintendo-3ds-eshop-demos-coming-to-useu-re-revelations-demo/
http://gbatemp.net/topic/318901-nintendo-of-america-comfirms-demos-by-tomorrow/