The leaked titles of the last two episodes are real with an extended run time to showcase the epic battle that is going to happen between the bastard leaders Jon Snow and Ramsay Bolton. The Season 6 episode 9 will have a run time of 60 minutes and episode 10 will have a duration of 69 minutes.
According to Entertainment Weekly, the ninth episode which is titled "Battle of the Bastards" was previously teased by the executive producers saying that this episode holds the biggest battle in the history of the show. As viewers can remember in the episode 4 of season 6, Jon was provoked to fight against Ramsay after he received the letter from him saying that he has Jon's youngest brother, Rickon.
Ramsay also has few requests in his letter that included Sansa to be sent back to Winterfell or else Jon and his wildling allies will be slaughtered. Jon doesn't have enough men to fight for him so they tried to unite as many noble houses in the north with the help of Davos and Sansa to fight alongside with them. Brienne was also sent by Sansa to Riverrun and relay her message to her Uncle Breynden Tully aka Blackfish to build the strongest army who can fight for them.
The season finale titled "The Winds of Winter" that coincides with George R.R. Martin's sixth novel will be the longest episode in the show's history. There is no description released yet coming from HBO for this episode but the last two episodes will be directed by Miguel Sapochnik who directed season 5's "Hardhome."
In other related report, a spoiler was posted in Reddit about the outcome of the battle in Winterfell. This may not be true but the story seemed so real. However, the real thread posted in Reddit was already deleted but iDigital Times claimed that they managed to save some of the post.
It was revealed that Jon Snow won the battle and chose to keep Ramsay Bolton captive but his brother Rickon died. The spoiler exactly says, "As Rickon runs, Ramsay starts shooting arrows up in the air one at a time that keep missing him. Jon starts galloping toward Rickon but just as he reaches him, one of Ramsay's arrow hits him and he dies in Jon's arms."
The video below is the trailer of "Game of Thrones" season 6.