S.T.A.L.K.E.R. 2 will not go out in 2021

It became known that the such expected first -person shooter S.T.A.L.K.E.R. 2, is not planned in 2021, as many users thought after its announcement. On the PlayGround website, one of the fans of the project in the GSC support was published. What she answered. Support is very unexpected.

it turned out that the numbers in the picture of the announcement 2.0.2.1. This is not a year of exit! This is a cipher-mystery that should be solved. Apparently in the future, the developer will leave tips (I hope). There is nothing more about the project, and everything keeps in the deepest secret.

In your opinion, what kind of cipher could be?