I personally am happy about this.
I didn't like the description of what the rumored TMNT game would be.
We need someone to make a classic beat'em up in the tradition of the classic Ninja Turtle games, but emphasis the 4 player combat more with team combos, more complex fighting mechanic, and basically take that side scrolling fighting style and not make it 3D but keep it traditional, but with some modern game design decisions to make it better.
But, I still want it to be a game you can sit down and enjoy with friends. I think about what Viewtiful Joe did to modernize the combat side scrolling platformer and I want that with beat'em ups.
For example: I would love a lock on system so that you can rotate through enemies and select your target you want to focus on. The lock on mechanic would allow you to throw things at the character better. Allow you to build a fighting engine that once locked on gives you different moves, and combos and dodge moves.
Another idea would be to set combos not on the human character performing them, but on the enemy that is being attacked and stunned. Then you could grab and throw them to another Turtle and have them link the attack and continue the combo...this would allow for team combos and more intricate combo system.
Items and weapons that are not just single move extensions but give you a new move set...perhaps the same move set that the enemy had before you took their weapon. So now you can pick up new weapons and gain new fighting moves, and real time play with that mechanic.
All of this adds complexity and design to the game, but I want it to feel essentially like you are playing the Turtles in Time.