Before Jon Snow's body could get cold, there has been plenty of "Game of Thrones" Season 6 speculation, casting news and plot theories. There are plenty of people still upset over the lack of Lady Stoneheart, and who could forget Coldhands? Our hearts have always been with the honorable and totally dead Ned Stark, but what if Sean Bean came back to reprise the role of the Lord of Winterfell? It's not too far out of the realm of possibility considering the news of a possible Arthur Dayne casting call and several flashbacks.

Warning: 'Game of Thrones' Season 6 Spoilers And 'A Song of Ice and Fire' Discussion Ahead

I know it seems incredibly speculative considering there have been no hints from Bean about a return to his role. And it's not that we'd want to see a headless Ned running around like a zombie terrifying Westeros. This bit of thinking comes from "A Song of Ice and Fire" subReddit. There are just two seasons left of "Game of Thrones," which means we'll be getting plenty of answers in all sorts of ways. The biggest question -- aside from who will sit on the Iron Throne at the end -- is the identity of Jon Snow's parents. The whole R+L = J theory has been fortified by years of speculation, textual clues and hints on the show. Sooner or later, that theory will be confirmed or totally shattered. What if we get our first hint of this during "Game of Thrones" Season 6?

In case you don't know what those three letters mean, many readers believe Rhaegar Targaryen and Lyanna Stark are the parents of Jon Snow. There's a debate about whether the two were in love or if the former kidnapped and raped the latter. The event triggered Robert's Rebellion and kicked off the events of "Game of Thrones." But how will we go about proving that Rhaegar and Lyanna are the parents of Jon? Luckily, we have the answer in Bran Stark.

I'm sure Bran's going to look completely different by the time we see him again in "Game of Thrones" Season 6, but he'll probably be well into his training with the three-eyed raven and the Children of the Forest. Bran has the ability to see into the past using weirwood trees and he could get a glimpse of the Tower of Joy using this power.

"Game of Thrones" had its first flashback in Season 5, and it looks like there could be two flashbacks in Season 6. Watchers on the Wall have been getting the casting scoops and there are four characters that make sense for two flashbacks.

The first casting news involves a trio of boys. One is a larger boy -- "big and tall, but not fat" with "squat features." The second boy has a northern accent and has brown hair and blue eyes while the last boy is younger (7 years old) and has green eyes. The first boy sounds like a young Robert Baratheon -- he was a massive guy that was all muscle and wielded a giant hammer -- and the third boy sounds like Ned Stark. The second boy could be Howland Reed, based on his close relationship with Ned. The show could tweak how they met and their closeness -- Ned and Howland met at the tourney of Harrenhal while the former was friends with Robert since they were children at the Eyrie -- as long as it makes sense that they were allies and friends.

A second flashback could involve Arthur Dayne. The legendary knight was guarding the Tower of Joy -- where Rhaegar and Lyanna were staying -- during Robert's Rebellion. Rhaegar left and was killed in the Battle of the Trident. With the war basically over, Ned went to the Tower of Joy and found Arthur and two other kingsguard members -- Lord Commander Gerold Hightower and Ser Oswell Whent. Accompanied by Howland Reed and five other men, the two sides fought an epic battle that only Ned and Howland survived.

Ned rushed into the tower and found Lyanna bleeding to death. Before she died, she made her brother promise her something and her last request was something he took to the grave. Could the secret be Jon Snow? That remains a mystery but something "Game of Thrones" could reveal in a flashback. The flashback with the trio of boys could occur earlier in the season to establish these characters while the Tower of Joy flashback could happen toward the end of "Game of Thrones" Season 6.

Casting Arthur Dayne makes sense for a Tower of Joy scene, and Sean Bean could return as a younger Ned -- some of the CGI budget could be spent on making him appear slightly younger. Having a character that sort of, maybe looks like Ned wouldn't be as much fun as a surprise cameo. This scene could be filmed on a soundstage or at a remote enough location that would discourage any leaks.

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