Well I've got some good news for you. April 2020 is completely wrong. We're actually gonna get it (the official release) in the Feburary. As for the beta, Korea and India got it last night, so I'm hoping we get it today or tomorrow.
It is important to know that this is the Beta version. There will be bugs and glitches that may affect the functionality of your phone. As soon as they've perfected the build you'll get the finished version whether you sign up or not.