I would like to see the stage with Rain, but seems it's not meant to be. It's the trade they make for better animated BG characters and more stages, I suppose. The UK stage and the Desert actually change times of day, but most others concentrate on characters, stage population, or the activities of guest characters from other / past games.
The Characters in the back of this stage are Kain (Garou MOTW), Kagami (Last Blade), and Charlotte (SamSho).