Wouldn't happen but Clone Wars remakes of the prequels could actually be amazing even if they closely followed the original.
Anakin in Episode 3 would be infinitely better and more tragic for example.
Far too expensive just to do on a whim, and Filoni and co would never ever want to touch Lucas's work and change it like that anyhow.
For Star Wars the work of George Lucas is treated as the gospel in the canon that cannot be touched, and it always will unless they full on kill the franchise completely and reboot it from scratch. You may love the prequels, you may hate them but they are here to stay for good.