Nissan yes still makes forced induction cars but they don't reach the US. The new skyline, if it does actually make it over here will have a decent powered V8. They won't turbo a V6. All concepts have rumors of great things like 480hp twin turbo V6s, but they never see production, at least in the US. Look at the 240sx. There has never been a turbo 240 sold in the US. That was one of the most popular cars in Japan, and is still very popular. High performance turbo cars tend to create more emissions and that is why it is impracticle. The US gov't will not let a twin turbo V6 Nissan come to the US. Emissions got more strict in Japan and continue to get more strict in the US. The RB was a bullet proof motor and the only advantage to a V6 is space saving. Not weight distribution. You need to look at the distribution of a skyline. A perfect example is the shit they try to call an evo here. Take an evo from anywhere else in the world and match it to ours and ours will get smoked. The STI even had to make bigger displacement to do it. Use your heads.
By the way, I hope I'm wrong. I like the RB better, but I would love to see a twin turbo V6. I just always look at the past US spec bullshit vehicles.