It has only been a week since the fifth season of 'Game of Thrones' ended with a shocking finale, but the internet is already abuzz with what to expect in Season Six.

[WARNING, POSSIBLE SPOILERS AHEAD]

Season Five finally advanced the show so it would be up to date with George R.R. Martin's most recent book, 'A Dance with Dragons.' At this point, fans can only speculate on what would happen in the next book as well as the next season. However, a recent casting call leak may have hints on who will return in Season Six.

Watchers on the Wall recently reported about a 'Game of Thrones' casting call for minor characters who will appear in the sixth season, and most of these roles call for possible Dothraki and Northmen warriors. The casting call has led to more speculations about the future of some of the major characters.

The search for possible Dothraki warriors puts the focus back to Daenerys Targaryen (Emilia Clarke), who was last seen reunited with her former Khalasar. There is a huge possibility that Dany will finally commandeer the Dothraki to march into Westeros within the sixth season.

The call for more Northmen, including a "Lord of Noble Northern House" as well as a "Lord of Northern Stronghold," means that Season Six will see more action close to Winterfell. Fans are expecting these lords to be the Umbers, a Northern clan that Rickon Stark stayed with during his long hiatus with Osha and Shaggydog. Art Parkinson, who plays the youngest Stark boy, refused to confirm his return, but fans are still hopeful Rickon will reappear in the sixth season.

Bran Stark (Isaac Hempstead Wright) is also expected to finally make a comeback, as 'Game of Thrones' executive producer David Benioff has already confirmed.

However, the one character that fans are still expecting to return is Jon Snow. Despite Kit Harington's insistence that Jon Snow is dead, people keep coming up with theories to prove the Lord Commander will be resurrected in Season Six.

The sixth season of 'Game of Thrones' will air on HBO in 2016.