The upcoming Norse mythology-inspired Magic: The Gathering set Kaldheim won't be officially released until February, and Wizards of the Coast hasn't revealed new cards from the new expansion yet, but it looks like a distributor's website has already confirmed that two brand new Commander preconstructed decks will be released along with Kaldheim.
Some details of the new Kaldheim Commander decks have also been leaked on the MTG Wiki page but no sources have been cited. According to the page, the names of the two Kaldheim Commander decks are Elven Empire and Phantom Premonition. The page also says that there will be six new cards featured in these two decks (three cards each), and the rest are reprints.
It looks like Wizards will continue to release more Commander products in 2021. We'll update you here on Epicstream once we find out more about Kaldheim.
KaldheimStrixhaven: School of Mages