Marvel Studios has perfected the art of putting an extra clip at the end of its movies, but it looks like DC Films will pick up the trend with Justice League. In an interview with BBC Radio 2, actor Jason Momoa revealed that Justice League does include a post-credits scene and suggests that fans should wait through the credits.
“They do, they do. You’ve gotta sit through the whole thing and go through the credits… I forgot that it was in the script. It’s fantastic.”
While I cannot confirm that what I’ve heard is true, the nature of the post-credits scene is jumping around Twitter. I won’t spoil that specific scene in this article, but if you’re compelled, a simple search should find results.
Source: BBC Radio 2