According to GameSpot's news, the ESRB site has put up ratings for Ninja Gaiden and TMNT2:The Arcade Game. I didn't go to the ESRB site to check but it's GameSpot so I'm sure it's legit. Sorry no link but I figure everyone can handle finding the news page at GameSpot
TMNT2 is one of the top games on my wanted list so this is good news. I prefer Ninja Gaiden 2, but the first being released is a good sign for 2 anyway.