A trailer for 'Avengers: Doomsday' has been released, with some outlets reporting it is a thor-themed teaser. The trailer appears to show thor in a moment of vulnerability, possibly praying for strength, although details of the trailer's content are not consistent across reports. Some outlets also mention the involvement of other characters, including black panther, the fantastic four, and captain america, while others reference the x-men, but it is unclear what the full scope of the trailer entails.