There is talk on the Wattbike forum, that if you have paid for the V2 they are offering people discounted Atom X upsell options to save on the wait time - Wait time for the X is 2 weeks.
The issue with ordering the V2 now is the wait is until Jan\Feb.
Also on the upsell option, it then puts it in the price range of the other bikes and you then have to consider would you stick with the Atom.
Though, there was some good points in the review, gear shifting time .75 secs which is huge improvement over the V1 (though I dont notice it now im 6 months into using it) and the accuracy feedback is great.