looks like a large amount of mining hash slowly shut down in the days after the chinese new year ended. i am thinking that they are now shipping these units to customers and we shall see ALL of the prior hash rate AND MORE up and running on the network within a week. this is just the calm before the storm. 20%+ next jump is not outside the realm of whats possible.
I think there is a good chance it's Bitmain on S7's on a decent amount. Small user's have gotten notices (at least some) on shipping.
And look at big side of it PCFLI's group I like to watch due to being a large quantity ordered. They still claim not to have miners it seems -
https://bitcointalk.org/index.php?topic=1283287.240Next one will hurt if these all go back online and if bitmain fills up slots with next batches S7's. The next batch they show shipping as " ANTMINER S7 BATCH 11 - Shipped out from March 1st~5th" so likely they will run those for a small bit of time.