Apple is planning ARM MacBooks, eh? It's actually not an entirely bad idea, as the iPad Pro is a performance beast and people have been clamoring for a more MacBook-like iPad.
I would expect the MacBook Pro lineup to stay on Intel for the foreseeable future, though.
What's cooler than 4K? 6K, that's what! There's a pile of Apple rumours going around that not only speak of new iPhones, iPads and larger MacBooks, but new Apple screens too that go all the way to 6K. The rumored size of 31.6 is very impressive and would give it a "retina" pixel density of a bit over 200. Source: Macrumors.com