Roko's original proposed basilisk is not and never was the problem in Roko's post. I don't expect it to be part of CEV, and it would be caught by generic procedures meant to prevent CEV from running if 80% of humanity turns out to be selfish bastards, like the Last Jury procedure (as renamed by Bostrom) or extrapolating a weighted donor CEV with a binary veto over the whole procedure.

EDIT: I affirm all of Nesov's answers (that I've seen so far) in the threads below.