That's very possible, but someone will need to figure out a way to squeeze all those GB's into a really tiny package for downloading.I think the real point is, "Who cares who wins!"
Until you can go to the neighborhood rental place or on-line renter and readily get any of the formats, it doesn't matter
Mr and Mrs. Joe Sixpack are looking for convienence. The downloaded formats will eventually win just because they're the easiest way to get the material into the home. No warehouse, no postage, minimal staffing.........in other words CHEAPER.