Sega is teasing Puyo Puyo Tetris for release on PC via Steam.
The Steam page for Bayonetta, another Sega game, posted the following image:
And the Steam page for Valkyria Chronicles posted this image:
Puyo Puyo Tetris is currently available for PlayStation 4 and Switch worldwide. In Japan, it is also available for PlayStation 3, Xbox One, Wii U, 3DS, and PS Vita.