In the year 2036, the Fringe Team takes on the Observers in a war that will change everything.
The Final Four begins with this look ahead to the future. Observers! Desmond! Nina with grey hair! And more.
The new intro (done just for this ep) is cool as all get out:
It does give me a bit of an Orwellian vibe. I'm really curious to see how this future differs from the one we saw at the end of last season, and why we're at war with the Observers.