I'd have to say that im very impressed by those early portraits. However I do agree with earlier posts which state, that it won't be a true gtr in the sense.
For one, our iconic car is going global, which means it will most likely be tailored to suit American tastes, and for the first time, they are going to slot a VQ V6 under the bonnet. I don't know about you, but working on the twin turbo arrangement on that thing would be an expensive nightmare. Look at what people have gone through with those arrangements on the 350z.
It looks like a fantastic car. To be honest though, I think it will go down as a fan boys supercar and not a diehard skyline fans pride and joy.