I know this is a sort of AN old topic, but here is my two cents. I raged a little when I first heard the news, then I clamed down, and eventually just stop careing.
In the end if the Turtles are portrayed like the good old amphibian martial arts masters we all know and love , I'll be happy. This is what I thought at first, but then I got thinking. If  Leo and the gang are going to be the same characters, why screw around with the origin. Tacking on a new back story just seems needlessly busy. It didn't help that Bay's response to the fan outcry was "WRRGH I AM GOD MY IDEAS ARE AUSOOME FRACLKE GARGLE POP". I honestly think the change in direction for the TMNT mythos was influenced by transformers. The autobots are aliens, also battleship has aliens, alot of blockbusters have had aliens. So obviously the heroes in a half shell have to be aliens. I think its just a cold calculated  decision by the bigwigs. It could be at least an enjoyable cold calculated hollywood bigwig film tho'. Or maybe I should just wait for a Biker Mice from Mars film. The asshole will probably change them to mutants!

So what are you guys thoughts?