That would certainly clear the way to avoid having overlapping releases. I would prefer a 1997 type scenario myself when I could see each film one month after another. They could make a Christmas 2014 3D boxset if they put them in theaters early in the year. It would be a lot of work to convert them all at once, but with Disney at the helm they could literally throw money at the projects until they were done in time. That's one huge advantage of having Lucasfilm financed by one of the largest multi-national corporations in the world: there really aren't any resources to be tied up anymore.