Electric water heater, yes? I don't see how bypass doors are going to work with this situation. You will need three doors (32" doors) and a cased opening. This opening does not appear to be a typical 2x4 framed opening. You need the depth of a traditional casing in order to mount the track to the header. The track(s) will be a lot wider than bifold tracks because each door slides in its own track. IOW's, you will need three tracks mounted side by side to the header. I have bypass doors on three closets in my house. I so dislike them. I don't love bifold doors either but bypass doors are much, much worse.

Keep playing with drawing til something makes sense. I tried to sketch something out, let's see if I can attach it. Did you want to add a tub, or just a bigger shower? If windows can be added to the left wall, it would really add more possibilities! I made the bigger closet skinny so the window light still comes in. This loses the hall closets so it may need more work. I am not a big fan of the hall between the closets, it was my attempt to keep the window. Either of the closets where the master was could be removed to be a sitting area or a desk area. Obviously I am not a professional. I just like looking at and thinking about floor plans. I am sure others will jump in to improve my sketch by criticizing it lol. I left the toilet and one sink in place. I think the shower could use the same drain and it would not be too bad to extend the pipes to make it bigger, and add the second sink. The entry point is a bit crowded but I was having trouble adding a second sink if I made the bathroom door by the closets.

All fair. I understand. When we moved from condo to house while I was pregnant with baby two it felt so glorious to have all this space suddenly but also not needed. If you are building this house to live in 5-10 years, then even in that time your wants and needs will change. So you want to build for flexibility. For us these were things we wanted as an example: When our kids were very young we loved having a small family room right off the kitchen so we could be in kitchen while they played. Now that they are older we have a “nicer” open concept main floor with living area but then a rec room in basement. For us kids bedrooms being near us has always been important. Making sure the bathroom(s) they access make sense. Having one bathtub for bathing is great. Making sure we have a guest room that feels private is important so family can visit. Large outdoor area for kids to play that is safe and flat and fenced. Lots of outdoor seating so grown ups also can enjoy. Many windows so we get lots of natural light. An open concept main floor that allowed for us to all be together and was great for entertaining. A mud room and laundry that were together so we could wash dirty things easily. Mud room well set up for storage of kid stuff. Did your architect ask you questions about your lifestyle and wants and needs? Have you looked at any homes you liked and considered why?

I do think some of this has to do with your expectations for closet space, too. I think of Patricia's comment that a narrow aisle isn't enough space to choose your clothes--but I don't spend any time in my closet trying things out or even looking at them carefully. They just get plucked off the rack and taken right back out; there's a mirror and room to change in the bedroom. If you prefer having room in the closet to do that, this is not that closet (nor, really, is a 5' wide closet, IMO). My in-laws have, coincidentally, almost the same size and configuration of space that we do and renovated it 25 years ago, reallocating the space between their 1960s-era master bath and closet. They opted to do a 6' wide walk-in closet with a mirror and changing space and a 5.5' wide bath. (We split ours 4'/7.5'.) The tradeoff was that they could only fit a 30" x 30" shower and had to do a bumpout for the vanity to have room (not an option for our home). They felt those were worthwhile tradeoffs, but we made different decisions for our space. It really comes down to what works best for you.