I completely agree with you. Nu-metal is awesome! The heavier, the better.
I've been getting into trance and house music (Kaskade, Guetta, Tiesto, Armin) over the last year and I LOVE it. However, I do NOT think LP should start sounding like trance music. I wanna headbang to LP, not rave to it. :/ I'm not against people trying different genres (e.g. Sharon Den Adel from Within Temptation sings with Armin Van Buuren on 'In and Out of Love' and both are amazing). If you're gonna do it though, do it under a different moniker.