As announced by Geoff Keighley on Twitter, Fall Guys: Season 2 will be unveiled at Gamescom Opening Night Live later this month on August 27.

Keighley says it’s going to be a sneak peak, so perhaps it won’t be too extensive a look, but we’re curious to see what it will entail.
"Fall Guys is great and all....but what if I told you there is
@FallGuysGame: Season 2! Don't miss the world premiere sneak peek from
@Mediatonic during
@gamescom Opening Night Live. Thursday, August 27 at 8 pm CEST / 2 pm ET / 11 am PT at
http://openingnightlive.com "