Im not saying nobody will play, im just saying you shouldnt expect 3k players online on day 1 because thats highly unlikely to happen considering the ammount of all the other vanilla servers that already exist or about to be released. I know about 3 other 1.12.1 projects which will release around the same months as Kronos and also have a community thats waiting for them to release, which will split the players.
The only way for a private server to have a crazy large community is if its the completely one and only server, and that wont happen in the near years. Maybe after a decade, or less, or more, when Blizzard stop supporting WoW servers, huge waves of players will head towards private servers, and that would be the golden age Imo.:biggrin: