@maporsche,
A heat lamp is the only thing that would interest me as a potential buyer other than a large walk-in shower. Oh, I lie - more outlets make every bathroom better, but I'm not sure I'd want ceiling outlets.
I hate bathtubs, don't like recessed lighting in any room etc etc.
Go as basic as possible - new buyers are always modifying things to their own taste. If resale is your interest, don't make it too distinctive.