EV726 looks to be the 2016 Euro 25km/h 250W "standard" 29er version. Then there's the 29er Pro version with slightly upgraded components.
EV765 is the 2015 Euro 29er. This is what I have, though my fork was an XC32 air fork with 15mm thru-axle.
Edit: and the EV765 is 36V, while the 2016 ones are both 48V. Which begs the question, can one put in a Nitro 29er wheel to get 28mph.