Usually, when observers spot the listing of a game on any games ratings board, it's enough to prompt developers to make an announcement. It might not come immediately, but it's very rare for a second games ratings board listing to pop up before a studio confirms its game. However, in the case of Castlevania Advance Collection, three countries in Australia, Korea, and now, in Taiwan, have confirmed that the game exists.
When is Konami going to announce Castlevania Advance Collection?
According to the most recent listing from the Taiwan Entertainment Software Rating Information website, Castlevania Advance Collection is rated PG-12 there for "sex, violence, horror, and inappropriate language."
Unlike the previous listing, Taiwan's games ratings board included the platforms of Castlevania Advance Collection. This all but confirms that the game will release on the Nintendo Switch, PlayStation 4, Xbox One, and the PC. However, despite the mounting evidence pointing to the existence of Castlevania Advance Collection, Konami still hasn't announced the game.

