Anything regarding ROTJ:R is just wishlists and ideas at this point. Ady probably doesn't even have a definitive list of what needs to be fixed or how. Besides, it's still possible for him to do ROTJ:R in 1080. By the time he gets to it, he may be on yet another computer upgrade to something with even more power.
First things first. Wait until ESB:R is finished and see where Ady is technologically at that point.