Here is an auction with some pics of the Nightwing statue:
Nightwing Statue
In regards to getting other sidekicks, I am one of those that believes that Batman is at his purest form with just Robin. All the other vigilantees helping out, with the exception of the original Batgirl, do not carry the same legacy in my eyes. It will always just be "The Dynamic Duo". A lot of us grew up on just that. Robin was and always will be **** Grayson. He has the classic origin, all that history and was practically raised by Batman. I would not mind if we just got Batman and Nightwing.
Like I said, if it wasn't for Paquet using that same base I would not be expecting a Batman companion statue. I think it would be a cool thing to have a "before and after" type of thing with both characters leaping solo in the same rooftop.