The Vampire Diaries100th episode (aka Season 5, Episode 11) is currently in production, which means the TVD cast and crew is hard at work on set. What will the hallmark episode include? Well, at least one flashback, judging by Paul Wesley’s (Stefan) recent snapshot.

“My morning,” Paul shared on Instagram on October 29, along with a picture of a horse and buggy in the woods. Will we be getting another peek into Mystic Falls’ past in the 100th episode? If Paul is there, it has to include either Stefan or Silas’ backstory and, given that Silas was desiccating in a tomb for the horse-and-buggy era, our money is on our favorite brooding vamp.

Credit: Pauly Wesley Instagram

We also have this picture from the set of Paul looking dashing with side-swept hair and 19th-century garb. Does this mean Stefan has his memory back? Will his amnesia be cured in Episode 11, or will it happen in a prior episode? Or could Stefan’s amnesia still be firmly in place, this flashback coming from the mind of Damon or Katherine, who were hanging with Stef back in the day?

If you hadn’t noticed, we’re eager to piece together the plot of the 100th episode because we think it’s going to be a big one. Thus far, we also know we will be getting a scene with Jeremy, Matt and Damon in the big 1-0-0. Might their scene together tie into the Stefan flashback? We’d totally support a Damon storytelling subplot with Jeremy and Matt as listeners. We’re loving the caretaking role Damon has been filling this season. Any scene that ends with a Deremy hug is successful in our book.

What story do you think the Episode 11 flashback will be telling? Share your theories in the comments below!

Catch the next episode of The Vampire Diaries on Thursday, October 31, 2013, at 8 p.m. ET on The CW.