Reflections of Earth and We Go On are still heard as the main Illuminations show every night at EPCOT. Promise and portions of Tapestry of Nations are still used as exit music after Illuminations. I believe Celebrate the Future Hand in Hand has been retired altogether.
As of right before Christmas, Celebrate the Future was still being used as music at the Fountain. I haven't been to Epcot this year, so don't know if it still plays there. But it was in regular rotation with "The Rocketeer," "Mickey's Show," etc.