According to Toyark (after a translation from Hoth Bricks) it looks like Lego are going to be releasing licensed sets based on TMNT as of January 2013.
I am a sucker for Lego. Every time I think I am over it something comes out that grabs my attention. This will certainly be the case if a Lego Technodrome set does become a reality.
TMNT is going to be huge again in 2013.