After the release of Star Fox Zero on the Wii U back in 2016, two years ago, the series has gone dormant like many other Nintendo franchises. The likelihood is that it won't be popping up again anytime soon, but some rumors are pointing to a potential racing game spin-off for the arcade space sim.
According to Eurogamer, there are multiple outlets reporting on a potential Star Fox spin-off called Star Fox: Grand Prix. This is supposedly going to be a fast-paced racing game based around the Star Fox property, but featuring different styles of racing across tracks and landscapes from the shooter-game series.
The rumors indicate that Retro Studios is allegedly working on the project, even though the outlet is best known for its work on the Metroid Prime series that graced the GameCube well over a decade ago.
All of this started with posts on Reddit and 4chan, which were quickly picked up by other news outlets. Eurogamer attempted to corroborate the news, and some of the sources told them that it could be true, but there's no definitive confirmation on that front. To further muddy the waters there's also an image of a printout for Star Fox: Grand Prix that has been circulating around 4chan. However, we all know that just about anyone with the willingness to download the Star Fox font and type in "Grand Prix" could have just as easily printed out the sheet and shared it with the community.
Some are ready to believe that this is all very true given that the last new game Retro Studios worked on was Donkey Kong Country Returns 3D for the Nintendo 3DS back in 2013. Before that it was Mario Kart 7 two years prior, and another Donkey Kong Country game for the Wii just a year before that. Everything else from 2010 prior was all Metroid Prime.
The last thing that Retro worked on in recent times was helping port over Donkey Kong Country: Tropical Freeze to the Nintendo Switch after it originally came out for the Wii U back in 2014. Port-jobs aren't the sort of tasks that utilize the full breadth of a game studio, however.
Of course, separate from the recent rumors about Star Fox, there are also rumors floating around that Retro is working on an unannounced project, which could end up being anything. However, it's noted that, back in 2015, Retro couldn't work on Metroid Prime: Federation Force because timing wise things didn't align due to the studio working on another unannounced project, so Next Level Games took up the developmental mantle, as reported by Nintendo Everything.
Could it be that, since 2015, Retro Studios was working on Star Fox: Grand Prix? A three year developmental cycle for a racing game sounds about right, assuming it would release this year. That's also assuming that nothing on the project was scrapped and Retro didn't have to start from scratch.
Of course, this is all rumor and speculation for now, but I think a lot of fans would definitely love to see something unique like Star Fox: Grand Prix make its way to the Nintendo Switch, especially after the lukewarm performance for Star Fox Zero on the Nintendo Wii U.