Nissan has nothing to lose by ditching (dissing) HSD. (1) They make their system look superior to HSD, even though they have vapor right now, (2) Their future is not tied to a competitor's good grace. There already been several companies ditching HSD to develop "their" own, including GM, BMW, etc.. Except they are still spinning the marketing wheel, hoping that hybrid is a fad.

Others may have a workable hybrid drivetrain soon, perhaps a better one. But since Toyota has already built up the scale/capacity, they would be the only one who can produce enough to sell economically.

I think the Hybrid game is over (Toyota already won the war). Diesel or fuel cell will be the new battleground.