Of course if the new lens will be released in more than one year and it will cost twice the actual 16-35 i'll take the 16-35.
You'd be correct about the 14-24L's starting price there, and for the time frame there is no telling other than Canon currently is extremely slow at releasing L lenses (updates). Rumors, patents or even test lenses don't mean anything concerning an actual market release... so if you aren't desperate for 14mm or corner(!) sharpness wide open get the 16-35L2.
I mean, 3-4 months to wait for the new firmware for the 1dx?
In fairness to Canon, a "real" firmware feature update esp. for the pro 1dx really needs to be bullet-proof, imagine the outcry if this would break the af tracking because they didn't test it enough...