Without having seen the "before" plan, I actually think it's a decent layout and super efficient plumbing-wise since all three plumbed areas--the laundry, kids bath, and master bath back up onto each other. I do question why the WIC and laundry rooms are bigger than the kids bath. Seems like you could grab a few extra sq. ft. from either side to make the kids bath less cramped, since you also have a reach-in closet in the master.

I question the use of swing doors onto the porch from the kids' bedrooms. Sliders would be better to maximize floor space. I would also make the closet in bedroom #2 one closet instead of two, just like in bedroom #1.

How old are your kids? Are you sure you want them to be able to get out without your knowledge?

Here’s some photos to explain the doors etc

Bathroom that was there

Well I can’t get last pic to load. But I’m laughing about them sneaking out since my daughter is 4 and my son turns 1 on Friday. But can see that in the future

Honestly? If there's a will there's a way. The type of door won't be a deterrence. Just trying to make your life easier in terms of space planning. ;-)

ah the future sounds delightful. lol this house has been so hard to figure out though. A serious puzzle!