We are tentatively expanding the vaulted space in the living room (far right of the floor plan here, the part with the "x" through it). It had been a bit pinched with all the design tweaking we did to the second floor.
If you have sharp eyes and a good memory, you'll notice a very slight shift in the placement of the second floor over the first. We're moving it to the west to create a little more vaulted space in the living room. The second-floor jog at the loft (top of the stairs) is what will require one of the structural beams in the house (it's also where we're talking about whether that beam will be exposed).
You can also see the orientation of the master bath, including a re-orientation of the toilet room, and the shower-only stall at the south (or "bottom") of the master bathroom. This particular orientation would not accommodate a double-sided linen closet, but it does reclaim a foot or so of space that we desperately needed for the second bathroom to be truly comfortable and functional. And the door for the master bedroom can be at any point along that approach hallway — as per a commentor's suggestion, we will likely put it at the public-space-end of the hall.