'Avengers: Doomsday' Trailer 3: Patrick Stewart, Ian McKellen and James Marsden paint grim fate for 'X-Men'; say 'Death comes for us all...'

Marvel Studios has officially dropped the third teaser trailer for its upcoming blockbuster 'Avengers: Doomsday', and with it, ushering in the return of the X-Men. Days after the trailer leaked online, the film's official handle dropped the trailer featuring Professor X, Magneto and Cyclops.

However, the trailer paints a rather grim picture for the fate of the much-loved characters.

Veteran actors Patrick Stewart and Ian McKellen reprise their roles as Professor Charles Xavier and Magneto, respectively. Joining them in this apparent final fight for survival is James Marsden as Cyclops.

'Avengers: Doomsday' trailer 4

X-Men return in 'Avengers: Doomsday'

The teaser opens with shots of a deserted hallways and classrooms of the famed Xavier’s School for Gifted Youngsters, before Magneto delivers a chilling voiceover saying, "Death comes for us all. That’s all I know for sure. But the question isn’t, ‘Are you prepared to die? The question is, ‘Who will you be when you close your eyes?’"The clip then goes to show Marsden in a comicbook accurate Cyclops costume, on his knees as he tears off his vizor and blasts laser beams.

It ends with the message 'The X-Men will return in Avengers: Doomsday'.

Fans react to 'Avengers: Doomsday' trailer

The reactions that poured in post the official trailer launch ranged from excitement to emotional, as fans hailed the Cyclops scene saying, "With the classic costume, James Marsden is getting the full Wolverine treatment." Another added, "James Marsden finally getting the Cyclops moment he deserved 20 years ago. That optic blast was INSANE."

"OMG seeing X-men and Avengers in the same sentence. What a time to be alive. My inner child is screaming and kicking," said another while another added, "Whenever Cyclops ripps off his vizor is always when he is 100% done, he holds the most destructive power behind his eyes and seeing him use it full force is always a treat.""Patrick Stewart and Ian McKellen together one last time as Professor X and Magneto is enough to bring a tear to the eye.

26 years now since the first X-Men film. A lot of us grew up with their versions of the characters," said another, teasing that while Professor X has been killed off before in 'Wolverine' and 'Doctor Strange In The Multiverse of Madness', his turn in this film could just be his last, along with Ian. However, with an 'X-Men' reboot on the cards, fans can hope for a possible return.

About the 'Avengers: Doomsday' trailer releases

The X-Men 'Doomsday' trailer was part of Marvel's elaborate 4-part trailer drop. The studio released 4 different trailers with

James Cameron

's 'Avatar: Fire and Ash', during the film's four-week run at the box office. The team released a new trailer each week, beginning with

Chris Evans

' Captain America, followed by

Chris Hemsworth

's Thor and now the X-Men. A fourth trailer reportedly featuring Black Panther is scheduled to release next, followed by a full-fledged 'Avengers: Doomsday' trailer set to arrive later.'Avengers: Doomsday' releases in cinemas on 18 December.