Tuesday night may be the last chance to see the fabulous Flaming Lips for quite a while. This may be disappointing news for avid fans who love to dress up in outrageous costumes to attend the Flaming Lips’ flamboyant, balloon-filled shows. But while the Lips will be off the road, they won’t be far from reach. An EP titled “Ego Tripping at the Gates of Hell” is due in November, and a DVD will be out shortly thereafter. There’s also a much-delayed movie, “Christmas on Mars,” due in the fall of 2004.