Cloud rendering is a fantasy for games on flat screens, because the latency is too high. To maintain 'presence' and not get sick in VR, the motion-to-photons latency has to be _consistently_ <20ms.
360 video for VR is certainly a bandwidth-hog, but I think that could well be offset by most VR content being game-like, where, though the game might weigh in at 40G, you download it once, and spend 40 hours in it, vs a 4k movie at the same size, which lasts 2 (and which you'd likely re-stream if you watched it again). In other words, widespread VR use, even with next-gen hardware, could actually lead to a reduced demand for bandwidth.
360 video for VR is certainly a bandwidth-hog, but I think that could well be offset by most VR content being game-like, where, though the game might weigh in at 40G, you download it once, and spend 40 hours in it, vs a 4k movie at the same size, which lasts 2 (and which you'd likely re-stream if you watched it again). In other words, widespread VR use, even with next-gen hardware, could actually lead to a reduced demand for bandwidth.