The one great thing about a laundry room is you do not need that much space. Convert a closet into your dream laundry room. A stackable arrangement conserves space but you can also install side by side washer & dryer with a counter top and cabinets above.
Walk-in showers (or wetrooms) are pure feel-good luxury. With a secure but seamless shower panel and tiles that extend the main bathroom floor into the shower, the overall feel is one of space and modernity.