For 2008 the only change to the Centaur sprockets is the addition of ‘macro’ spacers, which are basically just smaller on their outside diameter, but otherwise the same. Why change something that is proven to work?
Campagnolo sprockets used to have deep teeth on them, and while this resulted in clunkier shifting compared to Shimano, it also meant they lasted for ages in comparison. Ultra-Drive changed that a little, with the teeth ‘topped’ slightly to facilitate quicker and smoother shifting, along with a range of new chains.
Steel sprockets like these on an alloy carrier that are galvanised, and then have a chromoly-nickel plating that is PTFE-impregnated, should last a long time.