I don’t see many other ways of continuing to support Android development for Kotlin if J&J aren’t fully supported. J&J means that the javac-based toolchain is eventually going to be deprecated and abandoned, very much like ADT/Eclipse with the advent of Android Studio. I think it’s all in JetBrains’ hands to make this happen or not. They surely are in close touch with the Tools team at Google already, so I hope that’ll happen.