Do you think a pony wall solves the privacy problem moving the toilet to that wall? Will it look weird jutting out into the room past the vanity?

Won't look weird... most do jut out a little . If you do kitchen height vanity cabinets that provides additional blocking. If you out in the pony wall you give up additional vanity space.

Having designed a few baths, my initial thought is to move the toilet into one of the shower spots. Create an enclosure in there with pocket door or frosted glass swinging door if no room for pocket door. Then put bathtub across the wall there the toilet is now. So you see the bath instead of toilet when you walk in. Moving toilet shouldn't be a big deal since you already have drain lines in shower.

i second annmarie. i don't see any other way to add a bathtub that isn't a shower over tub (which i don't like either). you can also get a double vanity as short as 48" which would fit in the space you have next to the toilet.

Annette - Gary Loeb asked me to comment on this thread. If you are willing to move the pocket door, you can create enough space for a tub and separate shower. I would move the door in the direction of the window. The sink can be centered on the new door (I do think you will be limited to one sink - but you can have a lot of counter space and storage below the sink). The tub would go along the wall with the window. To the right of the door you can have the toilet and shower. The shower would be rectangular (in the corner near the sink) and should be at least 3 feet wide (if not 3'6"). I would be inclined to enclose both the toilet and shower in glass so that it looks very clean (also hides the existing condition you have in the corner where the shower would go). I can draw this for you if you like.

I like your wet room idea, if its possible.

I'm really grateful to all of you. We might have hit upon a solution that allows me to have my cake and eat it too (and why else would you want to have cake, anyway). If I put in a 41 x 41 shower pan on the left front, and angle a freestanding tub across that back left corner, put a glass screen on the shower, and then move the toilet almost straight across (just jog it in a little), it will look like this:

Then I can pick up that toilet wall for storage AND keep a double vanity, without having the toilet right in the sight line of the door while sitting on it. My contractor is checking this option right now. Thanks to all of you for helping me think through this problem!