Let’s Play Video Games, which features former Destructoid members, claims that various sources back EuroGamer’s article one being correct in the past with an Until Dawn Spinoff being in the works. Additionally they claim that the detachable controllers in the report have functionality similar to Wii Motion+ as well as the HTC Vive controllers’ force feedback which can mimicking the sensation of things like hitting a tennis ball. They claim Just Dance will be a lunch title that supports it.
Wii Motion Plus was a great controller that went underused since it was a late peripheral. Having two new controllers with that functionality out of the box sounds pretty good allowing for a lot of new ways to play.
Update: Emily Rogers also backs these claims