OK GUYS. I may be (probably am) completely wrong here but I think that I have an idea on what exactly may be going on in this Christmas Episode.
(Keep in mind this is only a theory meaning that it may or may not be true)
From looking at the spoilers and the pictures, I think I’ve cracked how Alison fits into this, (even if this is just a small part of the episode, or a minor story line).
In the book, A Christmas Carol written by Charles Dickens, Ebenezer Scrooge is a mean man who is visited by his dead coworker, Jacob Marley. Marley tells him he will be visited by three spirits, the Ghost of Christmas Past, Present, and Future to prevent him from going down a bad path that he is already on.
Alison DiLaurentis = Ebenezer Scrooge
Mona Vanderwaal = Jacob Marley/ Ghosts of Christmas
In this Pretty Little Liar Spoiler, Mona is supposed to be the Ghost of Christmas Past, Present, and Future.
Mona, as the different Ghost, comes back to haunt Alison’s dreams to show her what will happen if she continues down this path of destruction.
Like the book, Mona first shows Alison her Christmas Pasts, (this is where Little Alison comes in)
Alison will pity her younger self and see how bad of a life she had when she was younger. Just like how in the book, Ebenezer sees his younger self and sees how lonely he was back then.
Mona will take Alison further into her Christmas pasts and come to Alison’s most memorable Christmas, one where she wasn’t alone.
This is why I believe that Santa is Emily.
This would be flashback Emily though, the one hopelessly in love with Alison, making it seem logical because the current Emily would want NO part of kissing Alison.
Alison and Emily will kiss under the mistletoe in a flashback set the Christmas before Alison disappeared. (The writers would do this to please all the canon ships this Christmas) The drawing below is not my drawing and is the most amazing Emison drawing I have ever seen.
In the book, Scrooge falls in love with a woman but then that relationship ends after he becomes cruel and obsessed with the conservation of money. Scrooge sees how in love he was with this woman and is upset by how he let her slip away.
After Alison sees her Christmas from years past, Mona will then take her to see what her current Christmas will be like if she doesn’t change her ways.
From this Pretty Little Liars Spoiler:
Alison will probably see all her (ex)friends having dinner with their significant other. Meaning she’ll see Emily with Paige since Lindsay Shaw is going to be in the episode.
In the book, Scrooge sees his assistant having dinner and feels bad that he doesn’t treat his assistant the right way.
When Mona takes Alison to see her future Christmas’s Alison doesn’t like what she sees, giving her the biggest wake up call ever. When Alison awakes, she decides to seriously change her ways and become a better person.
The above relates to Alison because everyone knows she is the queen. “Newborn queen” refers to Alison’s wakeup call, and she changes her ways almost as if she was “reborn”.
In the book, Scrooge wakes up almost as a new person and makes it his job to fix everything and everyone he hurt in the past.
So, that’s my Christmas Episode Theory.
You can tell me your feedback either in a message or whatever. I’d be happy to hear.