Warning: The following contains possible spoilers for season six of HBO's "Game of Thrones."

HBO's hit show "Game of Thrones" won't return until sometime in 2016, but that doesn't mean that fans have lost interest. Actually, it's quite the opposite. Viewers are eager for any and all information regarding the show's upcoming sixth season. Today, we have some.

The fan spoiler site Watchers on the Wall has an interesting report that hints at some serious happenings next season.

"We've learned that Mace Tyrell will be headed home to Westeros," the site reported. "He won't receive a welcome from his mother, though. Olenna Tyrell will be angry with Mace over Loras and Margaery's imprisonment, shouting at him for doing nothing about it. We don't know yet if it's the Queen of Thorns or a regretful Mace who orders those soldiers into King's Landing."

Last season saw the High Sparrow and leader of the Faith militant imprison Margaery and Loras Tyrell in addition to Cersei Lannister. While Cersei was allowed to return to the Red Keep (albeit after the worst Walk of Shame in history), the fates of the Tyrell children remain unknown at this point.

"Another exciting bit of news: A very reliable source confirms for us that we'll be seeing a Stark family flashback, complete with the origin of Hodor. We've already uncovered the casting of young Ned; Ned's younger siblings will be present too."

This is a bit of a surprise as "Game of Thrones" has only used one flashback scene to date. That scene kicked off season five and planted the seeds for Cersei's unraveling. Similarly, it sounds as if this scene will be pivotal in understanding the current condition of the Starks and possibly even Jon Snow's true parentage.

"And as for Ian McShane - we've been told that he is not Randyll Tarly or Aeron Greyjoy. McShane plays a character who has a scene with the outlaw band mentioned in the 2nd casting call, who filmed last month. It sounds like McShane's role has minimal screen time like they said when he was cast, basically, though they did also refer to his 'key importance.'"