they completely redesigned, last year they were just ar5's with butter spots. this year they changed the core, the edges, and the topsheet among other things.
If thats true that makes me think twice about buying lasts year Thalls and this coming year's ar5. I don't want to buy two brand new Armadas. ehh. Whatever. There sick and worth the money.
if all you ski is park then get them otherwise i wouldnt unless you have like 12 different pairs of skis for every possible condition or if you live in the midwest where it doesnt really snow