This time, Timeless Theater will change just like Amber Island. In wave two, Amber Island gained:
One Double (Boskus)
One Triple (Sooza)
One Quad (Flum Ox)
Which means Timeless Theater will have the following monsters in Wave 2:
One Double (Jokarabbit)
One Triple (B’Naik)
One Quad (Iguanii)