In short, Season 3.5 will include a totally new level, over 40 variations on existing levels, a new DLC pack, and more. Additionally, the previously time-limited costumes for Godzilla, Sonic, and Untitled Goose Game will be added to the regular store as part of the mid-season update. Given the game's track record, it seems like this teaser is just the prelude to even more reveals in the near future -- including whatever "Fall Feed" turns out to be. You can check out the teaser itself below:
What will be in Season 3.5?— Fall Guys 🔜 Season 3.5 (@FallGuysGame) January 25, 2021
😎🆒 A brand new level
😎🆒 40+ new variations for our existing levels
😎🆒 Fall Feed 👀
😎🆒 New DLC pack!
😎🆒 Godzilla, Sonic, and Goose Game costumes available in regular store!
😎🆒 New shows and costumes to go live over the coming weeks pic.twitter.com/2rPEuIIjZO
At this point, it is unclear exactly when Season 3.5 will actually launch, but it won't be today. Fall Guys itself is currently available on both PlayStation 4 and PC.
Related Forum: PlayStation Forum