As much as I like to laugh at the conservative nature of US censorship, the censorship in the Witcher was entirely self imposed by CDPR. There never was any need for it and I doubt that this will have changed with the sequel.
I think it was Atari that asked for it actually, and yes it was never needed. The uncut version got an M rating from the ESRB.
Even though Atari is also publishing The Witcher 2 I would guess it will be uncut this time since the original got an M rating uncut after all. If it is censored by Atari again I'll just buy it but download the UK version... sorry CDPR, I'm not playing an edited version.