..this would be immensely helpful for us. Right now, because of how insane Unity's build numbers are in Unity 5.x, we use PlayerSettings.Android.bundleVersionCode as a shared bundle version (critical for taking Unity Cloud Build iOS builds and placing them directly in the App Store with incremented build numbers, which is now required).
Adding this value (and may as well add other version/bundle/build numbers?) would be SO AWESOME.