I listened to the S2s yesterday at Innovative Audio in NYC. While I've not heard my Alexias over the last 5 months (mine are packed waiting for our new home to be finished) I felt the new Alexias are more seamless, more transparent and image better. I was lucky to be able to hear them with the DAG Pre and S-250, a wonderful combination (my electronics as well). Wilson willl be able to sell lots of these.
By the way, the folks at Innovative were very nice.