Run-time null checks and performance

[tomjb]

Google today announced official support for Kotlin for Android development, and I saw this in their FAQ (FAQ Kotlin di Android  |  Android Developers):

calling a method that accepts non-null types adds a method call for the null check (though you can disable runtime null checks in the compiler with -Xno-param-assertions).

Can I take this to mean that -Xno-param-assertions is guaranteed to be supported in future?