They need look no further than how Warner Bros handled it with Blade Runner. With ep7 hitting in December, the comparison becomes even more appropriate. They could do a grand theatrical re-release of the "final" SE from this new 4k master we've already heard about, probably in September or early October (one of the dead zones of the year in terms of blockbusters), and show it in theaters for a limited time in 2d, 3d and digital Imax 3D. It'll still be the SE (albeit in hopefully improved form), so I won't pay to go see it, but if they put it out on blu-ray in December with a restored OOT I would be all over that.

Of course I'd love to be surprised and hear Disney go "screw the SE, we're putting the original versions in theaters!" but that ain't gonna happen.