Good question none the less!I will take this as a no.
All of those used E5-2670s that got ripped out of data centres must have been replaced with something else. Much as I love my dual E5-2670 system, it would be good to know what the data centres are buying as replacement so that in a couple of years I can buy a mobo in anticipation before the prices hike back up as they did for E5-2670 boards. What are the data centres buying now, E5-2670 V4?