Saw those. Nice little bit of photoshopping. There are a slew of possible variants and rehashes for this line, but since it IS directed at collectors who were comic fans first and foremost I would prefer to get some other characters out before we get Red Bandannas, then B&W, and also Cartoon Colors. And then you can go into different artistic interpretations. These Turtles appeared in this art style very briefly before going to the more recognizable art BrodieBruce posted a few posts up.
I just don't want this turning into Batman/Superman from DCD. Give me a Casey Jones, April, Splinter, Shredder, Foot Soldier, etc... I don't expect a ton of characters, but at least 8-10 main characters outside of the Mean Green Fighting Machines.