For what it's worth regarding this matter:
I have a 2012 Neo Cross which I purchased in the US in October, 2012. I started having spoke problems almost immediately. After several spoke replacements, I was finally advised by the Company that there was a design defect in the wheel (which had been caused by the wheel/spoke manufacturer and was present in other brands of bikes as well), which had been fixed in the 2013 model; I was then sent a replacement wheel (including new motor, cassette, and tire). The new wheel is indeed different from the previous version - the hub does not extend as much, which allows for longer spokes.
I therefore suggest that anyone out there who has this problem should ask the company for a replacement wheel.