1/9: On second thought, maybe he's led to believe some legend about Jarnborn being the only thing that can destroy the Infinity Gauntlet and stop Thanos.Kinda surprised they don't just have Thor rebuild a more powerful Mjolnir, though I guess Jarnbjorn might be portrayed as an upgrade here .
1/15: A Disneyland Paris commercial has a good look at the new IM armor.