On Saturday night, Kiss closed out the final performance of their “The End of the Road” farewell tour at New York City’s famed Madison Square Garden. But will it really be the end? During their encore, the band’s current lineup — founders Paul Stanley and Gene Simmons as well as guitarist Tommy Thayer and drummer Eric Singer — transformed themselves into avatars to perform “God Gave Rock and Roll to You.” The cutting-edge technology will be used to tease a new chapter of the rock band. After 50 years of Kiss, the band is now interested in a kind of virtual immortality.