I've been watching this thread for a long time. Just like someone said, at this point I would like the macbook pro not to be refreshed at all. I don't believe Apple would sacrifice GPU power in their pro notebook with some skyline integrated gpu. That means waiting for polaris. My dream come true would be some some amd XConnect integration like the razor blade, but like someone else stated, software changes means we will have to wait to WWDC. Like AMD says over and over, 2016 is supposed to be the year of VR, I just hope we will get some cooperation between those two giants. A pro product has to be able to create any kind of content.
I don't believe the next macbook pro will be just about a processor change, nor just some port changes. Apple has always give reasons in the past to buy the pro or the plus edition. Can be just the camera in the iPhone. Right now, the macbook has a better screen then the macbook pro, is way more energy efficient. So many changes, that the next macbook pro has to come with something worth the wait, a wow factor that Apple likes to gives us. Requires both hardware and software, thats why I expect nothing until WWDC.
Yeah, all my thoughts were just said.