If they cut the horrid Japanese wankery out, the new TV series would be quite average. I think Japanese culture and anime has had a really negative effect on American kids shows. I'm not ratting on Japanese stuff, just saying Americans can't replicate any part of it.
I'd like to recommend the TV movie Turtles Forever. It featured the 2003 animated series variation and the 80's versions came into their universe, they had some fights, proved that 80's Shredder was a bit shit and went into other universes such as the original comic one and was a decent enough experience.