I'm curious now as to why they didn't just leave well enough alone. Obviously they wanted the Fox logo completely gone, but I'm guessing they wouldn't allow it to be taken off ANH as part of whatever deal they made with Disney.

So now when people watch these digital versions in "saga" order they go from three movies of just the Lucasfilm logo (now with an edit of Williams' music from the end of ESB's end credits) to one movie presumably opening the way it always has (more or less) to two more movies with this new intro.