Thor: Ragnarok - 10 Huge Spoilers From The Comic Con Trailer

As well as showing lots of frankly stunning shots of Valkyrie's initial fall during Hela's first rise to power (and the apparent death of the rest of her people), the trailer reveals that the hero pulls on her old armour to help Thor fight his battle with the villain.

Having commandeered Grandmaster's colourful ship, Valkyrie seemingly crashes into the Rainbow bridge on Asgard and lays waste to Hela's forces, at first on her own (leading to that iconic shot framed in colourful sparks) and then as part of Thor's mini-Avengers team that also includes Loki and Hulk.

Despite their increased numbers (and the number of her minions they take out on arrival), it doesn't look like Hela is all that bothered when they face off. Presumably because she's got another couple of aces up her sleeve.