This was announced in a bizarre manner but was confirmed to be real it seems but what is interesting is I think Hori may have outed a Switch version as today they officially announced the arcade stick for Switch.

https://pvplive.net/c/nintendo-switch-fight-stick-officially-revealed-by

Now this may not seem like much bere here is an image of the leaked version over 2 months ago and the final version.

Now here is Kazunoko a professional player playing the said game with the developer this past weekend

As you can see he's using the same stick and it's even in the background of the second image, here's a trailer of the game for anyone who hasn't seen it.

Ahh I see.

Going to be funny hooking these up to a Switch and by accident pull the Switch off the table seeing how heavy those sticks are,