The franchise is still alive and well and with the prequels and The Clone Wars, Lucasfilm is still producing material intended to connect with those first three films. Remakes at this point would just look like cheating the timeline, and then where would that stop? Would the prequels get remade too? Remake 4-5-6 thirty+ years later, and then they remake 1-2-3 which would then be 20 years after the original PT ended... Once again there would be people complaining about the CT coming before the PT. Remakes would just be like an admission that the CT-PT Saga is flawed. Lucasfilm isn't going to do that. The best and most innovative future for STAR WARS motion pictures is in interactivity, like future forms of gaming.