I think as your kids get bigger you will really miss that mud room. We build our current home when our kids were 4 and 1.5, flash forward 8.5 years, now our kids are 12, 9 and 5 and one of the reasons we're building again is get room for a large mudroom. Work to get a mud room with a lot of storage if you can.

Would you want to move the playroom doors to the bedroom hallway? That way when guests arrive their first view isn't into the playroom.

You seem a bit ambivalent about the size of your master closet. If that's the case, you could use a bit of it for recessed built-ins in the family room or you could add hall closet space if you move the closet door and bedroom door. You can never have too much hall closet space, imo. :)

I'm not a fan of jack and jill baths, because one child or more will frequently forget to unlock the door leading to the other sibling's room. If my kids had a jack and jill, I would not put locks on the doors leading into their rooms - only the door leading to the toilet/shower.

And if you are trying to reduce square footage, imo the best place for the reduction would be in the family room and dining room, thereby reducing the family room to 18 X 20 and the dining room to 13 1/2 by 15. You would still have more than adaquate room for a walkway behind the sofa.
You could also reduce square footage by decreasing the wideth of the foyer to 6 feet instead of 7 feet. As long as you have doors on either side (playroom and dining room), you won't be able to put any furniture in there, anyway (for example, a console). Six feet would still look nice.

I wouldn't move the door of the playroom to the hallway, since this room could be used for multiple purposes. If the room is used for "noisy" purposes (a second tv room once the kids are teens), you wouldn't want that opening into the bedroom wing, imo. Also, if the room is decorated nicely at some point and not full of toys :) , I'd want it off the foyer.

Looks like your tv is on the other side of your closet? You could store your receiver, cable box, etc. in there and run the wires through the other side. That way your tv could be wall mounted with a very clean look, no components everywhere. There are remotes that will through walls.

Michelle1973 - I may revisit the mudroom and see if i can manage to get one in there without adding much more footage. There is currently a small wall to the left as you enter from garage which i can have some hook/cuby but nothing significant.

bird_lover66 - I agree with your comment about the jack and jill baths and plan to only have locks to the toilet/shower room.

cas81611 - That is a great point. My husband was going to run the cable/wires down to the basement but now we can just have it in our closet up on a higher shelf so to not interfere with the closet storage.