If Amazon is to be believed, the Super Mario Party Joy-Con Bundle is going to see release in the states. They have added a placeholder listing for the bundle on their website, and it includes a Nov. 16th, 2018 release date.
Late to the party? no problem. The Ultimate way to celebrate the Super Mario party game is here: this set Includes both the Super Mario party game and a set of Joy-Con Controllers in neon green and neon yellow.There's no better way to enjoy the variety of modes including the original 4-player Mario party series board game, and 80 new minigames packed with wildly different challenges and clever uses of Joy-Con Controllers.
The blurb above makes it pretty clear that this is the bundle that we've seen in other parts of the world. I guess we'll just have to wait for Nintendo to officially announce it now!
Thanks to Andreslop24 for the heads up!