HBO has dropped a new, action-packed trailer for the upcoming "Game of Thrones" Season 7. It's mixed with some clips from the first trailer released a month ago, but the new scenes are certainly enough to get "got" fans excited and raring with new theories.

Hidden in the new trailer are clues and possible spoilers for the upcoming season. How many did you spot? Here, we break the scenes down and discuss what they could mean for all of Westeros.

Bran gets a wheelchair

Now Hodor-less, Bran Stark finally gets some sort of a wheelchair and Meera can finally take a break.

Bran couldn't possibly have a chair made north of the Wall, so this means he's finally made it safe to Castle Black.

Fans can even hope that he's now back in Winterfell, judging from the familiar weirwood tree he's sitting at. It certainly looks like Bran is in the godswood, the same spot where Sansa Stark last spoke with Littlefinger in Season 6.

Euron arrives in King's Landing

There's a scene showing Cersei Lannister looking a little pensive. It cuts to a very short clip showing a parade in King's Landing. "Game of Thrones" fans think the celebration is due to Euron Greyjoy's arrival. There's also a shot of Euron's fleet coming to King's Landing that supports this theory.

Euron Greyjoy will likely seek a partnership with the newly-crowned Queen of Westeros, who is badly in need of allies right now.

He seems to be dragging a prisoner with him, maybe as a gift to Queen Cersei. Could it be his nice, Yara Greyjoy, that he's dragging?

The trailer also shows a fiery naval battle involving Theon and Yara Greyjoy. Has their uncle defeated and captured them? In a previous interview, actor Pilou Asbaek boasted that his character will be a villain that would make Ramsay Bolton look like a kid.

The Unsullied enters Casterly Rock, thanks to Tyrion?

At about a minute into the trailer, we see Grey Worm for the first time. He's in his full Unsullied armor, about to cross a river into a tunnel. In an early episode of "Game of Thrones," Tyrion Lannister mentioned that his father Tywin gave him the lowly job of fixing Casterly Rock's sewage systems when he was young.

This means Tyrion knows the hidden entrances leading to the Lannister fort. Now that he's on Team Dany, he will use this knowledge to their advantage. And at the 1:11 mark, we finally see Unsullied soldiers opening the gates to other Unsullied men.

Beric Dondarrion's Lightbringer?

The most talked-about scene in the new "GoT" trailer is the shot of Beric Dondarrion, leader of the Brotherhood Without Banners. He's seen in full winter clothes, and rightly so. In "Game of Thrones" Season 6, he was headed North to fight the real war against the White Walkers.

The trailer shows Beric pulling out his sword in preparation for a big fight when suddenly, it bursts into flames.

This is an all-important scene because it hints of the much-talked-about Azor Ahai prophecy, referring to the "Prince that was promised." The legend has it that the Savior would bring forth Lightbringer, his flaming sword that will defeat darkness.

While it is highly unlikely that a minor character such as Beric Dondarrion is the Azor Ahai, perhaps he will pass on his sword to someone else, say Jon Snow? At about the 1:20 mark we see a shot of Jon Snow surrounded by wights, with Beric by his side.

Sansa's cryptic last words

The trailer ends with Sansa Stark uttering a cryptic line.

"When the snow falls, when the white wind blows--the lone wolf falls, but the pack survives."

What could she mean by these words?

Is the "lone wolf" referring to Jon Snow? Or has she finally realized that the only way for the Stark family to survive the great war is by sticking together?

If so, then this means she won't be scheming with Littlefinger to betray Jon. We certainly hope it's the latter!

What did you think of the new "GoT" trailer? Sound off your own theories in the comments section below! "Game of Thrones" Season 7 premieres July 16 on HBO.