Marvel still has two "Avengers" movie coming up and people are already well aware of what the third movie will be. "Avengers 4," however remains a mystery and Marvel Studios President Kevin Feige said the title cannot be revealed yet, but the movie is different from "The Avengers: Infinity War."

According to a report from Eric Eisenberg of CinemaBlend, directors Joe and Anthony Russo told him last year that the title of "Avengers 4" won't be revealed to the public. He deduced that it might be because it's a spoiler, to which he got the confirmation from Feige during a sit-down interview at the press day for "Guardians of the Galaxy Vol. 2" in Los Angeles.

Eisenberg said that keeping spoilers from leaking has been a problem for Marvel because future projects of the studio have been serving as spoilers for other movies. Like what happened with "The Avengers," where the announcement of "Captain America 2" before people got to see the 2012 movie already told them that he won't be dying in "The Avengers."

"Avengers 4" was supposed to be Part 2 of "The Avengers: Infinity War," but since Marvel changed it, there have been questions lingering on whether Thanos will still be part of the fourth movie. Feige was tight lipped about it and only told Eisenberg that the two movies are "very different."

ComicBook reports, though, Thanos will likely be in "Avengers 4," as the two movies, though different, are still connected in a way. The spoiler title would likely reveal whether the Avengers defeated the Mad Titan or if one of the heroes died during that war.

The report said that the title for the movie will likely be revealed next year unless leaks about the movie come out. Brandon Davis, a correspondent for ComicBook, mentioned that Feige said the company would want to keep the title secret for "as long as possible." Check out the video below for more on "Avengers 4."