Looks like there might have been some issues at Retro Studios after all.
Source
I figured something was up with Retro after there game did not show up on Switch last year. I'm guessing they run into some trouble back when this new game was a Wii U game and Nintendo told them to focus on a Trpocial Freeze port and Star Fox Grand Prix. Or Nintendo was not happy with the scale of there new possible IP and turned down the game for now in favor of more games using the more while known Nintendo IP.
Gameinformer wrote:We have heard many of the same rumors, though cannot and do not confirm the veracity of the sources. Rumors of the game have been swirling for several months in light of talk from some sources that Retro Studios' title has been struggling, with many at both Retro and Nintendo growing frustrated with the state of the project. These sources did not confirm whether the project being worked on was this Star Fox title.
Source
I figured something was up with Retro after there game did not show up on Switch last year. I'm guessing they run into some trouble back when this new game was a Wii U game and Nintendo told them to focus on a Trpocial Freeze port and Star Fox Grand Prix. Or Nintendo was not happy with the scale of there new possible IP and turned down the game for now in favor of more games using the more while known Nintendo IP.