Thor sports a shirt that seems to feature a visual representation of the mighty Yggdrasil, the World Tree, a sacred part of the spiritual landscape of the Viking world. In a previous trailer, Thor meditated under what appeared to be Yggdrasil, so brandishing the T-shirt may indicate that enlightenment is just what he finds there.
In an escape from Olympus, we see The Revengers at risk of colliding with two unnamed Celestial beings. These mighty beings could be a critical factor in defeating the villain Gorr, or they could just be another significant problem for Thor and his accomplices.
The Bifrost, the Rainbow Bridge of Asgard, was destroyed in "Thor: Ragnarok,” but it seems that Thor and his companions may have found a new way to invoke the Bifrost. In the trailer, a Viking-style longship is generating its own Bifrost while it soars through the air.
Thor manages to stop two chariots in their tracks by committing an impressive split with one foot on each chariot, containing both with nary a sweat broken. The move is incredibly reminiscent of the splits Jean-Claude van Damme would frequently perform in his movies.
Thor introduces the latest version of his Revengers, consisting of Korg, Valkyrie, Jane Foster, and the Guardians of the Galaxy. When you combine all that power and skill, it's hard to imagine a villain who'd give them any difficulty.