The demise of the R tronic is just reflecting what the majority of new buyers now expect in any new vehicle
The R-tronic is now consigned to history and whilst it will be fondly remembered by current owners..it is probably struggling on the expectation of a current 2013 shopper who's in the market for a expensive performance car and it doesn't reflect the cutting edge that all the R8 competitors now offer.
Expectations from new car shoppers would be around the smoothness of gear change and its performance and quickness of gear change.. along with additional considerations from Audi such as fuel management,performance stats on the brochure and emissions due to tightening legislative requirements in the future.
I understand current R-tronic owners lamenting the passing of the R-tronic..as it does provide driving engagement for a driver that can be influenced by driver skill and finesse and this IS its asset.
After owning a Nissan GT-R... I understand the concerns and agree around comments of a possible sterile and soulless transmission with the new Stronic that requires no driver input apart from pulling a paddle.
I for one certainly hope that Audi does build a personality into the S tronic for the R8.. as I would be interested if I step into a new R8.
Finally the manual transmission fills a niche for a particular buyer...and unfortunately this also seems consigned to history as well.