I don't know actually. I think what this depends on really, is how well the 2016MBP is due versus their own projected sales. If its meeting Apple's own expectations then what you predict is likely. If however as many suspect the 2016 models are not selling great and the 2015 continues to sell well, then I think we could see more drastic changes sooner. The other possibility is a price drop at some time. I personally would not buy now all things considered. If my existing machine died tomorrow however, I would buy a refurb 2015 model as my first preference.
You could be right, but after what Phil Schiller said during the Mac Pro meeting with the press Apple are happy with how the MacBook Pro with Touch Bar has been selling
"Obviously, as you know, we just did a very major update to the MacBook Pro line. That’s going very well. Customers absolutely love it, we’ve had a lot of customers buying them. Big numbers, as I said, 20 percent growth year over year. We’re very proud of those products; we know there’s feedback on things that can be done better on them. There’s things that we want to do better on them. We know they matter to our pro customers, and we have every intention to advance that Mac Book Pro line in the years ahead and make it better and better for our core customers, but we think we’re off to a good start there."
The Touch Bar was mentioned later in the interview
"We think we’re off to a good start with the Touch Bar. That it is intuitive for everybody in general and specifically does give some incredible capabilities for pro users. And as we’ve started to see more and more adoption in pro apps, our own – obviously Logic supports it, as does Final Cut and third-party apps have done a real good job starting to support it. We’re seeing some really brilliant uses of it.
And we think that this is a good path that we’re on. The opportunity to integrate touch where it can most add additional value in the Mac experience is the smart way to go, just as we’ve made the trackpad better at gestures and a really smooth, intuitive experience. We think that’s a great place to go with touch and that’s what the Touch Bar is. We’re still going to learn a lot more. It hasn’t been that long that it’s been out there and we’re still trying to learn and gather data from customers – research mostly and a lot of different interview with customers and we’re going to learn. And we think, if we’re right, this is a great direction for the Mac."
I don't think the 2016 MacBook Pro has been as much doom and gloom as it's been made out on the negative posts and threads on these kinds of forums, the average user may be enjoying them. It seems Apple is happy with the numbers at least.