So since I know a lot of you care deeply about this thing, let me make a quick comment. The way I constructed
this story was very deliberate, and it was very heavily couched because I wasn't nearly as sure as I usually am when I report on these things. When I have confirmed something firsthand with my own sources who have direct knowledge of information, you'll see me be a lot clearer. (ie: "Sources: Watch Dogs 3 Is Real And Set In London.") When I'm sharing something that I think is true but can't confidently confirm (which is fairly uncommon), you'll see me be a lot more careful with my words, like this:
A piping hot new E3 rumor suggests that Retro Studios, the Nintendo-owned developer behind the Metroid Prime trilogy, is making a Star Fox racing game. These rumors have been floating around gossipy Nintendo fan and writer circles for at least a few weeks now, but they’ve only gone public today, suggesting that Retro’s new game is called Star Fox: Grand Prix.
We’ve heard the same from a source plugged into goings-on at Nintendo, and we’ve also heard from two other sources that the Austin, Texas-based Retro had a separate project that went through a rocky development cycle and may in fact be canceled.
The second part of that statement I am still very confident in. Retro has had a troubled last few years, from what I've heard.
But today I spoke to the person I referred to as "a source plugged into goings-on at Nintendo" in that article and they are no longer confident that Star Fox Grand Prix is real. I won't burn my sources or say anything that could possibly identify them,
but it's very, very possible that this is one of those rumors that never had much air in the first place. A lot of Nintendo rumor-mongers talk to each other, a lot of things get lost in translation, and sometimes what appears to be coming from multiple sources might actually be coming from a ring of people sharing information with one another. That's why I try to be very careful when it comes to reporting on Nintendo-related gossip that comes my way. So much of that stuff has turned out to be bunk, even from extremely reputable reporters.
Ultimately, I don't know if Star Fox Grand Prix is real or was ever real. I'm not as interested in that question as I am in the question of how the recent Metroid Prime 4 deal came together (and just what's been happening at Retro over the past few years), but that's a story that has proven difficult to tell. Hopefully one day!