Hard to tell without saying what site.
My bet is no I don't see Honda discontinuing that. They have DOT3 brake fluid (that isn't even heavy duty any more) and their own branded engine oil that they don't need, they don't even need their garbage windshield washer fluid concentrate, yet they keep all of these around. I don't see them discontinuing specialty fluid that you need to use without substitute. They only switched over to EPS within the last decade or so, in the grand scheme of time that's not even close to enough time to discontinue the fluid used by the largest portion of drivers.