It's called Bridge Constructor Portal and it puts you right back in Aperture Labs, together with GLaDOS who has made a decision to run tests in vehicle-based test chambers because. well, why not? No, the company that used to be famous for making games instead of selling them didn't announced Portal 3, but it did announce Bridge Constructor Portal.
It's probably not where anybody expected Portal to go after Portal 2 and VR playground The Lab, but sometimes you've gotta build a few bridges to get where you're really going.
If you wanted to know how unpopular this announcement was, look no further than the video below, which has its like/dislike ratio turned off on YouTube, and the top comment is "please valve make an apologize for your existence".
"Hello and welcome back to the Aperture Science computer-aided enrichment center".
For the a year ago we've been secretly working in our underground labs on the next iteration of the million-selling Bridge Constructorseries.
Bridge Constructor Portal will blend the laws of structural engineering and technology straight from Aperture Laboratories into an exciting new game experience, all under the demanding gaze of GLaDOS.
Backing up a bit, if you've never played a Portal game before, I implore you to fix that problem. Bridge Constructor Portal is exactly what it sounds like - a bridge construction game. with portals - and it's heading to PS4, Xbox One, PC, Nintendo Switch and mobile devices "soon". In it, players construct spans and supports to allow traffic to flow from one part of the level to another. The game will jump to consoles sometime in 2018.