Nintendo is inviting would-be Pokemon trainers to sign up for email alerts about the game's arrival on the Switch console.
The Japanese company's official site is letting players register their email addresses, in one of the first official acknowledgements of the upcoming game's existence.
Nintendo didn't immediately respond to a request for comment.
It seems likely that an announcement is coming soon, either at the E3 trade show, which runs from June 12 to 14 in LA, or in one of the company's signature Nintendo Direct videos.
Rumors have been swirling around the game for months, but its nature remains a mystery.
The franchise made a big splash on mobile with the 2016 release of Pokemon Go, which became a. Pokemon developer Niantic is now working by crowdsourcing the cameras on players' phones.
Nintendo recently beganin Japan, offering players a cheaper alternative to the standard package. Normally, the hybrid console works in dock mode with a TV or in portable mode as a standalone tablet.