To the Clone Wars animated series, anyway. From USA Today:
Star Wars fans felt the shaft in The Phantom Menace when Darth Maul was introduced and quickly killed off — and so did the spiffy-looking Sith lord, who fell to his death after being sliced in two by a lightsaber.
You can’t keep a great villain down, though. And that’s why Darth Maul will be resurrected this spring, making his grand re-entry into Star Wars mythology in episodes of the Cartoon Network animated series Star Wars: The Clone Wars.
…
Filoni was as surprised as anyone during a Clone Wars story meeting when Star Wars creator George Lucas asked Filoni to figure out a way to bring Darth Maul back.
Darth Maul is probably one of the biggest “missed opportunities” in the history of Star Wars. Everyone was amazed by how visually badass Maul looked in the early Phantom Menace trailers, but that amazement quickly turned into disappointment when the character uttered a line or two of arbitrary dialogue and was unceremoniously cut in half by Obi-Wan.
The thing is, Clone Wars is a great little show that kids today LOVE, but its cardinal sin is the sloppy practice of shoe-horning tons of characters, events, and concepts into the time frame between Episodes II and III that all become irrelevant the moment Revenge of the Sith starts and no one mentions any of it. Bringing Darth Maul back to life (he won’t be a clone, apparently) is just another example of this gratuitous ret-conning.
Don’t be surprised if, somewhere down the road, Filoni announces that George requested him to insert a huge battle between Ewoks and Jawas that turns the tide of the Clone Wars once and for all. Oh wait, that was just some bad fanfic I came up with 15 years ago. Nevermind.