Juliana newfound ability
Its weird that only her have the ability to receive other worlds memories , I get that she is special at the end of S2 but that doesnt really explain why only she can trigger those memories.
shareAbe (a.k.a High Castle) told Juliana he'd seen her in many of his movies, always in the middle of things happening. And that while other people often differed somewhat in their personalities and the choices they made she was unnaturally consistent from one world to another. This would certainly explain why. The ability of all of them to experience each others' memories unifies the many Julianas. I was wondering if she could travel too, and in the last episode we see that she can.
I hope they follow Juliana Crain's story a little more next season, so we can find out what makes her unique (if she is) and what role she plays in the bigger picture.