The updated battery warranty is very nice, and the improved torque is nice too...
I also suspect that the switch from 3-brick to 2-brick is because not too many people bought the 3-brick models...
I further suspect that even less people will buy the 2-brickers. Noone buys a motorcycle to ride at city speeds with no acceleration -- an e-scooter or e-bicycle do a better job there. The S/DS ZF6.5 has 40-50mi realistic range the way motorcycles are usually ridden. That's is OK for many commutes, but not any kind of road trip.
I think that as Tesla (and all other BEV carmaker) eventually decided, it's enough to offer two battery sizes. At Zero's smaller volumes, I doubt there's justification for three. I expect Zero to follow suit, and within a year or two offer just the 4-brick (ZF13) and the PowerTank versions.
That aside, I'm mostly disappointed by the lineup.
IMO, at least for the way road bikes and dual-sports are ridden, Zero's #1, #2 and #3 glaring problems are range, range and range.
A compromise aerodynamic fairing (aesthetically more acceptable than Terry's record-breakers) that gives a 30% improvement in high-speed range should be possible technically, but probably requires resources Zero don't have in house. So I was just a little bit disappointed when it didn't show up a year ago.
But I don't think there was a valid reason not to offer better charging options for 2016, and even less not to make any progress for the 2017 models. Zero should have all the expertise in house to make it happen.
1.3kW on AC is completely ridiculous. 3.3kW should be the minimum, without requiring an extra accessory (ChargeTank), particularly one that removes the PowerTank option; the Energica has this as the onboard charger. More likely 6.6kW/7.2kW should be supported, which makes local-area destination charging useful (a 1-hour stop at shopping mallis enough to get you home, even if near-empty).
What's really needed, however, for day trips, is a DCFC.
This is how the Energica Ego does it (video from 1.5 years ago): 20kW, so a charge to 80% SoC takes ~30min, and the taper to full another 20min or so (it would be a bit more with current Zeros with their larger batteries, but not by much).
Yes, I know that there have been some compatibility issues with chargers not dealing with Zero's low voltage (relative to an EV's traction battery), but that needs to be addressed -- if no Zero has DCFC, what's the charger vendors' motivation to fix it?
f the HW needed for this on the bike is expensive -- make it an option (I suspect >50% of riders, probably more like 90%, would get it), but most importantly, range is the biggest obstacle to adoption of electric motorcycles among the riders I know.
It's not a bit more torque, which was plenty good already.
Of course, I know about the DigiNow plans --but this should be OEM developed and integrated, or it won't be a mass-adopted item, and it shouldn't take away from luggage space.