When AMC unveiled their Walking Dead Season 8 trailer at Comic-Con last weekend, it ended with quite the big surprise, a shot featuring "Old Man Rick," i.e., Rick Grimes (Andrew Lincoln) who has aged quite a bit. This shot left many fans puzzled and confused, but during the TCA summer tour, Walking Dead comic book creator Robert Kirkman teased that fans will find out what this shot really means in the Season 8 premiere. Here's what he had to say below.

"Or was it the time jump. I don't know, maybe it was Rick waking up from his coma. Wouldn't that be weird? That is an intriguing tidbit that we did throw out there on purpose, and we're hoping that people continue to question how it is that fits into the story line and what it is. Comic book fans know where a scene that kind of looked like that would fall, but it also doesn't seem like we would be getting to that just yet if you were a comic book fan, so there's a mystery to that. I'm pretty sure you'll learn in the first episode what that means."

The executive producer's statement at the TCA tour (courtesy of Comic Book Movie doesn't exactly specify what the significance of this shot is, but it seems we won't have to wait too long to find out. It's worth noting that, after the All Out War comics, which this season will be adapted from, there is a two-year time jump, where all of the communities have existed in peace, but this mysterious shot seems like Rick has aged much more than just two years.

AMC announced that the trailer it premiered timed to Comic-Con International in San Diego, previewing the upcoming eighth season of "The Walking Dead," has been viewed online more than 31 million times within four days, breaking its own record as well as surpassing other major trailers that also debuted at Comic-Con. The world-wide reveal of the five-minute trailer for The Walking Dead, which gives fans a first look at the upcoming action-packed season, has thus far garnered more than 31 million views across Facebook, YouTube, Twitter and AMC.com, alone. In the days leading up to Comic-Con, AMC released key art for the season along with the October 22nd season 8 premiere date, which coincides with the series' 100th episode.

Scott M. Gimple said that the pace will be set right away in the Season 8 premiere, which will also mark the show's 100th episode, stating that he wants the audience to "hold on to their seat as they're thrown through this thing." The series is also in mourning, following the death of stuntman John Bernecker, who passed away at just 33 years of age, after suffering serious head injuries after he fell more than 30 feet to the concrete floor. Hopefully we'll have more on The Walking Dead Season 8 very soon.