It's been a little while since Esphirian dropped his first experimental trailer for a reimagining of Star Fox Adventures in Unreal Engine. 2020 really hit him hard, but he was finally able to put out a new trailer. This one was done is a more epic, cinematic style, with voice acting and a wide variety of play-styles. We get to see more enemies, bosses, cutscenes, voice acting, racing, Arwing dogfighting, new characters, and more.
This is clearly an open-world game, with Fox and Krystal working together in many scenes, sometimes Krystal is player-controlled, sometimes it's Fox. There are a lot of interesting ideas here, as well as much more polish than the first trailer. During the first announcement, it was hinted this was a private fangame and wouldn't be released. However, Esphirian mentioned in the description that he plans to be more open with the development as time goes on, so hopefully that indicates that he'll be willing to release it too. Fingers crossed.