My hope is that with enough passage of time, the prequels will be completely remade and "the Lucas prequels" are remembered more like the Star Wars Christmas Special.
But that's gonna take a lot of time. Just sweeping them away is no easy feat because of (1) their massive media exposure, and (2) their A-List talent. I mean, as shitty as the prequels were, they star Liam Neeson, Ewan McGregor, and Natalie Portman. Even Hayden Christensen was a pretty good choice - it's not his fault the writing was garbage.
On the other hand, Hollywood has remade plenty of other movies. We're on what - our fifth of sixth iterations of Superman, Spiderman, and Batman? That's about 4 or 5 remakes too many for Spiderman. But Star Wars just feels like it is on a different level. Tougher to undo what Lucas did.
The best way is to build around it.
For starters, all of the Old Republic stuff is bad ass. There is a dearth of content in legends you can mine. There's the old Sith Empire, the Great Hyperspace War, Revan, the Rakkata, the Eternal Empire, etc. To put Vader in his proper perspective, you have to see how the Sith operated. To get a true appreciation, you have to understand how his story differs from Plageus, Bane, Revan, Sideous, etc.
What people who don't dive deeply into canon miss is that his castle was on Mustafar, and it's there because the Emperor wanted to screw with his mind. The reason he was in the Bacta tank is because he's in a constant state of pain and near death. His suit was designed to be extremely uncomfortable because the physical pain and anger draw him more deeply into his dark side power, and the features of the suit were created to enhance his force abilities. However, there were limitations to his treatment and equipment so he wouldn't be able to defeat the Emperor.
And that's another thing the films don't touch. The Emperor is a complete and utter manifestation of evil. He is constantly trying to kill and replace Vader, since that is how the Rule of Two works. But Vader kept killing those who the Emperor tried to replace him with. He was always mentally torturing him about how he killed his wife, hence why his castle is on Mustafar, so every time he looks outside, he sees the place where he killed his wife, lost to Obi Wan, and descended into madness.
Vader is, by far, the most fascinating character in the Star Wars universe, but there's so much you can't do with him in PG-13 movies. I mean, for Christ's sakes, he crash lands in a planet, a child helps him find a way off the planet, and then he kills the kid. It's in the canon.
