I'll keep it simple, some concepts for new maps could be:

• Arcade (I'd fuck heavy with a ball pit you could hide bodies in)
• Theatre (self explanitory)
• Mini-Golf course (specifically with the glow in the dark theme?)
• Aquarium (like an indoor zoo! Just all aquatic animals)
• Bowling Alley (while pretty open, i feel like you could do something with the shoe storage, backrooms for the lanes, bathrooms, etc)