Where has JetBrains claimed that Kotlin is going to become irrelevant once Java 8/9 get on Android? Kotlin was and is a multi-purpose language targeting not onl

Where has JetBrains claimed that Kotlin is going to become irrelevant once Java 8/9 get on Android? Kotlin was and is a multi-purpose language targeting not only Android but other applications and platforms such as server-side, web or even client-side.