It totally should be a lounge. Add some old Hollywood theming and make it a nice "Actor's Lounge" type spot, would be cool. Would be a nice little area to relax!
While we're at it, let's continue that theme and make it so that the Lower Lot is renamed Production Central and that we're actors/extras visiting the soundstages/sets where Jurassic Park, Mummy, and Transformers are filming. And they can add some random props, camera rigs and dollys and cranes and other equipment as theming/photo opps. Make it look like we're right in the middle of a backlot surrounded by these films which are "in production". I'd personally love that. The upper lot can have more of the "different themed lands" feel, but since JP, Trans, and Mummy are so close together, it'd be impossible to make them all into lands. So a general but highly themed "production theming" to the lower lot would be so much fun!