Difficulty speculation continues to be entertaining, let's see what the winter brings!
I think this means batch 2/3 of S7's are not made yet. They are shipping all they can to not have to compensate (even though its a crappy compensation). But I think there is a data center that is ready to be filled up with a ton of S7's.
I could be wrong and they are already on the network. But I still think batch 2/3 will have a little bump in difficulty (a 5 percent or so week whenever they do get them online). Or that's what I speculate atleast.