The “Toy Story 4” trailer has fans of the series buzzing. Just take a look at the movie franchise’s Twitter account to see how excited fans are for the release: the trailer has more than 4,000 comments and almost 275,000 likes.

Eagle-eyed fans have noticed something interesting about the trailer, though. Andy doesn’t look quite like himself. Consider this side-by-side comparison:

Photo Credit: Pixar

He does look a bit different. Is it just the animators freshening things up? Or is something else going on? Is it a new character?

This fan is going with the new character theory:

Photo Credit: Twitter

Here’s a fan with a specific theory about who the “new” character might be:

Photo Credit: Twitter

Others just think it’s a normal update for the character.

Photo Credit: Twitter

And they’re grateful for the change.

Photo Credit: Twitter

Who is this mysterious new character? Is it a new character or just an updated version of Andy? I guess we’ll have to wait to find out!