SE, June iPhone release is just speculation at this point. If you read more posts on that blog, he explains past practice and doesn't think June release can occur without IOS8 release first, no later than May. He doesn't rule out June, but leans more to late summer or early fall.
So there could be a bit more time til iPhone6 release if it's in the previous fall release timeframe. It would still be a pretty tall order for QMC to ramp up quickly enough for such a large product, but that's the beauty of the reactors, scalability and reasonable cost. IF Apple wanted it done, they certainly have some loose change to get a larger reactor built quickly.
Nice for QMC to be in speculative conversation at this point. Time will tell.