A video by DidYouKnowGaming made the rounds yesterday. Back in 2013, Eric Kozlowsky, an employee inside Retro Studios, pitched a game idea for "Star Fox Armada", a mission-based Star Fox with a more open world and a heavy emphasis on multiplayer and online interactions. If it had been successful, it would have featured some ideas that ultimately would see an appearance inside games like Starlink and Star Fox Zero. It would have also utilized a graphical style designed to evoke the puppet aesthetic from the SNES game's marketing.
The document presented internally was a skeleton, only pointing out interesting ideas, but lacking a lot of details, as is common for pitch documents. Retro Studio executives found the idea interesting, but ultimately did not do anything with it. According to Eric, what Retro Studios ultimately decides to work on is largely decided externally by Nintendo of Japan. Many other internal pitches were similarly ignored.
Had the pitch gone forward, it would have almost certainly rebooted the series to a point just after the events of Star Fox 64, getting rid of Adventures, Assault, and Command in the continuity (more than half of the series' lore). I think we can all be a little bit glad that this particular pitch was passed over as it would have meant removing a lot of canon, including our beloved Krystal.
It's interesting that he wanted to call it Star Fox Armada. I believe that was the placeholder name for the arcade version of Star Fox under development at the same time as Star Fox Assault for the then-new "Triforce" arcade board. Nothing ever came of this game, however.
DidYouKnowGaming also mentioned that they would be publishing a video about the long-rumored "Star Fox Grand Prix" soon. Last I heard, the racing-based Star Fox game was rumored to have been a trap to figure out what employees were leaking Nintendo secrets, and was never a real game project at all. I guess we'll find out soon.