This also corroborates what Undead Labs Community Manager Nicole also said on Reddit last month- that the game will make its Spring release date, and the developer is ready to talk more about it.
Undead Labs and Microsoft’s State of Decay 2, the sequel to the breakout hit zombie survival game on the Xbox 360, was announced for Spring 2018 last E3, but we haven’t seen or heard anything of it since.
That may be about to change soon, because an ESRB listing for the game has cropped up.
This is significant, because ESRB listings usually show up only when a game is submitted for certification- itself something that only happens near a game’s release.