While the footage looks good on our monitor we need a proper A/B comparison with the 4K sensor version before making any firm conclusions.
Hopefully this is a sign that the 4.6K version will be shipping soon. These shots come from pre-production models. Testers are reporting what seems to be like 2 stops of improvement over the 2.5K model which is significant and more than we were expecting. The feedback has been positive so far.