Indeed. But the project is about the saga in general, and not just ROTJ. I think it would be a shame to risk doing what Lucas ended up doing, albeit in a considerably shorter timeframe, of course. If you've already got your version of the rise and fall of Anakin Skywalker-story in the back of your heads when you eventually start working on ROTJ, you'll probably have a ton of new ideas to put into it.

Besides, I think most of us agree that what needs instant fixing are the prequels. The original movies are pretty much flawless, except for the continuity errors brought in by the advent of the prequels. And I would love to see your take on a better PT first!