OK, just following up with version 2.0 of the bathroom in the current 11'x13' closet area. I still really like the idea of the wet room in the smaller space, I fear it may just not be large enough at 7' x5'2". I've included dimensions on these versions for reference. We feel like the open area in the larger bath will make the space feel too large (we're used to smaller bathrooms and honestly feel "exposed" when using much larger baths). Anyway, thoughts, critique, and encouragement welcome! Thanks Houzzers.
EDIT: Imagine a large window above the bathtub.
Q