The lighting and bumper cover designs did change, they always do from a flashy show car to an affordable production car.
But a lot of the Legacy concept went over to the Production version. Very unfortunately.
I am hoping that since I am much more pleased with the Impreza Design Concept, that the production Impreza will be similarly handsome, even if less flashy.
I kind of hope they keep the Aston-like, GT-R-like flush fit door handles, and keep the side mirror size to an allowable minimum, instead of the barn doors that seem to be fitted to new cars these days, since about 2010.