The 3W front wheels are what I believe are called "side laced". The spokes meet the rim at the outer half, so the inner half of the rim carries no spokes. It's visible in my photos from today at Ledgerwoods, but not obvious. I really don't know whether that's an advantage or not but the old 3W in the photo has centre laced wheels by the look.
I had a very close look. I wonder why they aren't center-laced on the new one. It doesn't make much sense to me to do it off to one side.
I bet it's because the wheel makers usually makes wheels for "closed" wheel cases and that people want the spokes to be as far out towards to tyre wall as possible.
I'd prefer center laced myself - especially since you can see the wheel from both sides and I bet it would flex (a little) less.