The following is 100% speculation.
Remember how they purchased the SkookumScript company and the “verse” script screenshots that are around? I am guessing that Verse is their new DSL (domain specific language) which may compile into better byte-code or native code from the beginning. All they would do is retarget the BP compiler from Kismet->Verse which means they have no need for the BP nativization feature because they have something better.