The move was leaked in a video from the company dealer conference in the USA.
The video has now been taken down, but is still available on Motorcycle.com.
The video confirms our tip in April that it would be a 90kW (120hp), liquid-cooled, DOHC 1770cc V-twin engine.
It is believed the quad-valve Powerplus was originally developed as the Victory Freedom V2 before Polaris axed the brand in 2017.
The new Powerplus powered motorcycle range will be smaller than the current 111-cube Thunderstroke V-twin that powers the Chief and Roadmaster models.
It is not yet known how many models will be in the range and whether they will replace the Chief and Roadmaster models or be an extra line-up.
But wait, there could be more.
And in April a photo was leaked of a Raptor tourer with a big fixed fairing to challenge the Harley-Davidson Road Glide.
You can see it is powered by the Powerplus engine. It also features LED “bracket-shaped lights as in the above video.
The same month a brochure was leaked that showed several new Apollo variants of its popular FTR 1200 and dark MiniBall versions of its Scout range.