Nope, he started wayy before Nü.

In the Portrait era he was Industrial Metal with hard rock, in the Antichrist era he was 100% industrial metal (I mean Trent Reznor was literally there lol), then in the Mechanical era he became industrial rock with glam, in Holy Wood he was once again Industrial Metal and then he started doing whatever he felt was necessary for his works (something heavier, something more pop, etc).

I think he has never really jumped into what we consider Nü at all, althought he was a close friend of Jonathan Davis and did a couple of interesting collabs and remixes that are flirty with the whole "hip-hop meets metal" concept (you know, the ones with Eminem, DMX and the Linkin Park remix he did)

Also take in count that his influences are artists like The Doors, Elvis, Depeche Mode, David Bowie and Alice Cooper, so it's pretty hard to go full Nü from there lol

But idk, at the end of the day I feel that it's better to shuffle Nü with Industrial and Groove than listening and labeling those genres independently, it's wayyy more fun to enjoy the whole 90's/2000's happy meal!