After the "incident" of the file Olivia receives 2 times in the 4x05, I'm wondering about the déjà vu Olivia has experienced in "The road not taken " .

This déjà vu was in some way the first "spontaneous" power Olivia experienced at the time, after having been activated. Walter, knowing about Olivia's abilities regarding universes travel, concludes she's seeing things from the other universe.
After that, of course, when we really discover the other universe, it's different from her visions. Many viewers complained about this fact, too. But most of us are ready to say that it's only because the writers hadn't totally made up their minds about what the other universe was gonna look like.
ANd what if Walter, and us, were finally wrong?

In season 4 , Peter's return happens with traumatic experiences for Olivia (even though, she didn't even saw him emerging in the nude from the lake. Ahum. ). I'm pretty sure her abilities are now triggered.
And what happens? Again "déjà vu".
But this time, the word "timeloop" is in the air, and it's leading me to wonder...
What if, in the "road not taken", and now in "novations", Olivia is not seeing another universe, but the events that happened in a previous timeloop? And why not even, the timeloop which ended up with TDWD events?
I'd like to have your enlightened opinions about these ideas, dear fellow fringies