Sounds great!
Though the idea of "infinities" was to follow strange and interesting deviations from the canonical plot (i.e. Vader becomes a good guy after ROTJ, recolors his armor white, helps the rebels, and spends quality time with his two loving children). This kind of thing has long been a tradition with comic books (such as Marvel's "What If" series), and I feel it is certainly a welcome and amusing part of the mass of SW EU out there. But I am not so sure a serious remake of the PT would really fit in with the spirit of the idea behind "infinities". Would be kind of like Marvel calling the fairly recent Incredible Hulk remake, "The Incredible Hulk: What If... The Incredible Hulk Film Had Actually Been Watchable?"