I think the trend, here anyways, is smaller bathrooms than in the past but lots of them.
I sttended a picnic for new residents in our neighborhood and one of the young folks was lamenting the huge jacuzzi tub in her house. I told her “yep, that's what we did to these houses in the 80’s, made a bedroom into a big ass bathroom with a giant ass tub.”
I am happy to see a return to small bathrooms with showrs and no tub.