Didn't they do this at WDW? When we went we got the Falcon to ourselves (ahhh yeahhh!) but I think that's changed. That sounds sooo strange to me.
Star Tours also had it but again just side view like Soarin'.
I hope they leave it off Pirates... I have a feeling we'd have the water splash issue with that one.
They did add it to some degree to MSFR. I rode in March. I was solo so they stuck me with a family of 4. I was the engineer and there was a partial plexiglass type screen between the gunner row and the engineer row. The father in the family I was put with seemed really annoyed that I was trying to board with them and tried to block me, but the CM told them I was riding with them and had to sort out who had what role (I think he was going to spread himself into the Engineer role so that they would have 2 pilots, 1 gunner, and 1 engineer, but I am not sure). He caused a ton of confusion to the CM before I said that I am solo and the engineer and the 4 of them go together. When my friends and I rode a few days later as a party of 3, we had our own pod.