A new Switch controller might be coming soon, thanks to a listing from the FCC. The filing got published on the FCC website a few days ago. Not much is known yet, but the page lends a couple of clues.
The biggest clue seems to be the FCC listing saying "HAC043" - "HAC" tends to be the ID for Nintendo's Switch products. It is safe to say that this new listing is not part of a new system line. The confidentiality agreement expires on March 16th, 2022. But there's a good chance an announcement will happen before then.
Author's Note: What do you think the announcement could be? Maybe a new fitness game? New version of a different existing controller scheme? Let us know in the comments!
Editing & Writing: Thirdkoopa