After a thrilling end to Season 6 of Game of Thrones, one can easily understand your impatience. To accommodate the shooting schedule of season 7, unlike the previous six seasons, this season will be released during mid-June 2017 and unlike the previous seasons which contained ten episodes; this season will consist of seven episodes. In season 6, Lyanna Mormont spoke out about how Jon Snow is the king of the North and also about his bastard status and rallied the other Kings of the North to support Jon Snow. Meanwhile, Bran managed to find another Weirdwood tree and was able to see his next vision--which made us aware of Jon Snow's birthplace, including that he is the son of Ned Stark’s sister Lyanna Stark and Rhaeghar Targarean. Meanwhile, Littlefinger has declared his love for Sansa Stark, which she declined.
Cersei made a decision that resulted in a disaster for everybody, but it got her the Iron Throne. After Loras Tyrell had dealt with his trial, Cersei coolly blew her trial off. Qyburn had sent the children he trained into the city to enforce the evil plan. One of those children activated the wildfire that had been flowing in the tunnels under the city, and Margaery Tyrell, the High Sparrow, Mace Tyrell, Loras Tyrell and others who were present in the temple lost their lives as a result.
As a result, Tommen decided to kill himself which ironically gave a new definition to the King's Landing. Jaime Lannister returned home, in time to see his beloved (and sister) Cersei Lannister take the Iron Throne. In the South, the Martells were plotting, and they formed an unlikely partnership with Olenna Tyrell, who was infuriated to learn Cersei Lannister had destroyed her entire bloodline. Also, we later learned that Varys had travelled to Dorne to convince the Southerners to take action against the Iron Throne.
Daenerys Targaryen has finally started heading towards Westeros,with Yara and Theon Greyjoy in the tow. In season 7; according to the books, we can expect Catelyn Stark to be alive courtesy of Beric Dondarrion, and subsequently. She goes on a revenge tour of Westeros alongside the Brotherhood Without Banners. Still bearing the scars of her death and pale and fragile skin, she mercilessly kills anyone even remotely associated with the Lannisters, Boltons, and Freys. At one point, she even hangs Brienne and Podrick, accusing them of betraying her by associating with Jaime Lannister.
We can expect Euron Greyjoy and the newly-crowned Queen Cersei to team up. We are expecting Daenerys might be meeting Davos Seaworth and Brienne of Tarth. Since these two are loyal to the Stark bloodline, we can expect an alliance to be in order.