Well this is good timing, because I took delivery of a W2086/T208 set only a few days ago. While I haven't sat and watched them, I've already done about a dozen loads so far, and have made a few observations along the way.
The dryer does reverse. Without properly timing it, most cycles seem to reverse at intervals for roughly 15 seconds at a time. So far, no tangling, and everything comes out very evenly dry with minimal creasing.
The Bedding cycle reverses very frequently, I'd say on par with the equivalent cycle on Electrolux built dryers. The one load of bed linens I've done so far didn't ball up or tangle, and again came out perfectly.
Auto Normal Dry (the energy label cycle) doesn't reverse at all from what I've seen. The dryer does still have the Butterfly type paddles however, and I haven't had a single instance of tangling or balling yet.
Early days yet but I'm pleased with them. I've always wanted an Asko set, and the current pricing (GBP £449 each!) was too good to pass up.