They should make the Tree of Life the center of a nightime show. Install a 3d dancing water show from the tree along with mist screens. Use projections to make the animals on the tree come to life. Have Rifiki cast a spell to bring them to life. Theme it so that they come to life at night when no one is around...or so they think because the crowds have become quiet and still. Just need to come up with a villian subplot.