Peter - never was. We have that on good authority from The Observers, who engineered the warping of the history of the parallel worlds, with the representatives of the two universes looking at each other with some trepidition and puzzlement, not remembering why they were even in the same room.
The possible postulate: that the parallel worlds already depicted were NOT the only two alternate universes, but a vast multitute of realities, and “our” Peter simply disappeared into one of these other dimensions.
Peter will be back, and The Observers shall be confounded yet one more time, as the transient Olivia/Bolivia proves to be an individual that exists in a number of different configurations, yet all interconnected at some existential level.
Curiouser and curiouser.
I wish Anna Torv lived in my universe just sayin
I wish Olivia existed in my world that women drives me bonkers