I would take what the press writes with a pinch of salt unless VW comes out with an official pricing and spec. The process of designing and manufacturing a new car to have the magnetic ride system would be cheaper than to have one fitted onto chassis that was made to use the original dampeners, as at the of day they arent adding another dampener system on top of the original, they are fitting it in lieu of the original ones and the cost should somewhat offset itself.
However I cant see it being standard on Scirocco, maybe if they have different trim levels it would be standard on the high end trim.