It looks like Marvel released some huge Guardians of the Galaxy spoilers and the biggest reveal of them all is the Guardians of the Galaxy concept art showing Thanos having a face-off with Batista's Drax the Destroyer!

Marvel recently released a couple of Guardians of the Galaxy concept art and one stood out as it showed Drax having a stare down with Thanos.

While the depicted scene looks like stuff that's going to happen in the Guardians of the galaxy end credits scene, the concept art is depicting a scene that's going to happen in the movie itself as the Guardians of the galaxy end credits scene shows Thanos vs Nova aka Richard Rider.

The Guardians of the Galaxy end credits scene has been leaked online and it allegedly shows Nathan Fillion as Richard Rider aka Nova and Thanos, revealing some major Guardians of the Galaxy spoilers.

The Latino Review has confirmed that Guardians of the Galaxy end credits scene would feature Richard Rider aka Nova as well as Thanos appearing on the movie voiced by Josh Brolin.

While the Latino Review didn't say who was portraying Nova in the Guardians of the Galaxy post credits scene a number of news sites have confirmed that Nathan Fillion is Nova in the Guardians of the Galaxy post credits scene.

Thanos appeared in the Avengers end credits scene and he is also going to appear on the Guardians of the Galaxy end credits scene.

In addition, director James Gunn confirms, "We're definitely tied to 'Avengers 3."

And, with the recent development, speculations began to rise about how small or big Thanos' role in James Gunn's film would be.

Moviepilot noted that Thanos would be seen more in the Guardians of the Galaxy end credits scene than inside the movie itself.

Bobby BoxingFanatic Borges said:

"The last we saw Thanos was at the ending of the Avengers film. Not even a 10 sec scene that shows him. Now my idea is I could envision Thanos getting a hold of a gem that might be included in Guardians of The Galaxy. I could see Thanos looking at Asgard as saying something like "Ah...Odins treasure room" and then cuts off. It would make sense since Guardians of the Galaxy already takes place in a cosmic setting. Reintroducing Thanos would keep us interested in Avengers 3. I wouldn't be shocked if some similarity of this scene may occur."

Going back to what director James Gunn claimed, Moviepilot also speculated that since Guardians and Avengers are allegedly connected, the after credits may be: "we could see Loki ruling Asgard [as we all took a hint at the end of "Thor: The Dark World"] and/or we can get the first official look at Ultron from Avengers: Age of Ultron."

So what do you think of these Guardians of the Galaxy spoilers? Sound off in the comments below!