Even though they are busy ramping up the Model S production, and quickly growing the vehicle service center locations, it is good to hear they are working on further improvements and upgrades for the cars. If /when they offer upgraded power components for the Roadster, it could be very interesting. Eventually many batteries will need rebuild service. At that time, battery tech will be significantly stronger.
I can imagine upgraded electric drive parts to deliver much faster acceleration, fast charging, etc, all as a super performance upgrade package. Those who do not give up their Roadsters to buy a Model S, can upgrade them to the Ultra Roadster Sport!