I'm guessing the next rev will have a 4k display. I believe the competition is also looking into that as well. Given the extra R&D on an entirely new concept with equally impressive tech; I give the launch date late 2016 or early 2017 for a consumer product.
And the question is - is it too late? I mean, we've been hearing about OR for years now, and all the wonderful things it can do. Consumers are ripe for *ANYTHING* to come onto the market.
An enterprising Chinese manufacturer can release POS versions of OR with crappy screens and laggy tech and make it for $150. If they release it by the holidays, that will be the big Christmas gift of the year.
And by CES 2016, everyone would wonder what the hype was about, and damage the concept so badly, even an Apple version wouldn't get the market going again.
The technology is being hyped up way beyond reasonable. The first out of the gate could really go and spoil it for everyone.
Yes, a high-res display is nice, but it wouldn't be the end of the world if it wasn't there. You want the low latency and fast response and that is already there. Someone releasing a crappy version would bring about the same thing that happened every time it's tried - it flops, and the technology gets shelved for another decade.