I see this as very good news for the future of a 7DII. I seriously doubt Canon would be upgrading the 7D firmware and referring to it as its "flagship APS-C sensor" camera if they were planning to kill it off in a few months.
It also shows a commitment to their flagship model customers that, frankly, I appreciate. Yes, it makes good business sense for them to do this, but as long as I benefit, I'm not complaining.
On the downside, I do wonder if this means no 7DII by Photokina. But, I wouldn't say that for certain. If they continue the tradition of passing down the flagship sensor to lower level models it seems like they'll have to upgrade the sensor soon. Should be an interesting next few months.