New Movie Turtle Origins?

[TheJ-manTurtleMan]

Does anyone know what the origin of the Turtles in the new movie is going to be?

What I mean is I'm wondering; are these baby turtles mutated into humanoids, or (for what it sounds more and more like) are these human teenagers mutated into turtle-like creatures?

With all this new info for the toy fair and the costume pictures, It sounds like these might might be human teenagers mutated into ninja turtles.

This assumption is based on a few things:
*The fact that they wear clothes
*That they seem to have knowledge and want of "normal" things ie; sunglasses, necklaces, shoes, pizza, etc...
*just the look of the face from the costume, it has a visible nose and lips
* But the biggest piece of evidence is the alleged tattoo; Why and how would Mikey have a tattoo living the sewer his whole life?

anyway, if anyone knows of anything to either prove or disprove this, Thank you!