Yes, very true NoiseBoy. And keeping prices the same but making it nicer has certainly been Zero's refrain for a while now.
The Size 6 Zero S with the 2013 gearing should be about as fast as the FX .. ie able to wheelie on demand up to 50 mph or so. It should also be able to beat virtually any gas-powered vehicle on two wheels or four wheels to 60 mph if they're not prepared, ie in launch control mode. So street performance should be covered, as long as you don't care about 150+ mph blasts on "private roads".
The premium sportbike market seems to consist of top speed epeen contests. I don't think Zero can compete there without a significantly more powerful drive system and an aero fairing, which probably are not in the cards for 2014.
In order to sell the bike as a premium product, all of the cheap components have to go. Tires, display, mirrors, seat, suspension, brakes. They already have the LED taillamp, now they need a LED headlamp up front. Styling needs to improve somehow - tough to do with a big black box in the center.
Standard CHAdeMO would also be a nice premium feature. Nissan is preparing to roll out CHAdeMO chargers at 600 of their US dealers, so in a year's time CHAdeMO would provide for relatively easy touring on a ZF11.4 Zero.
We've mostly been talking about the S here, which is indeed Zero's volume seller. What about the DS? And the smaller FX, XU, MX bikes? I can't really think of much to improve for the X-lineup other than a faster charger .. they should have at least the 1.3 kW charger from the S-lineup. A heavy, high-power J1772 charger is probably not necessary for these bikes (or CHAdeMO..)