The thing that gets me about this type of face lift is that it really just looks like a fancy set of head and tail lights + grill, slapped on an old Falcon.
From the spy shots it looks just like the current FG everywhere else
Which really isn't a great deal different from the older generation BA
And if you are really unkind, not a lot different to even the AU if you look at the window/door shape
But, if you're simply trying to merge the current Falcon into the transition model so it can become a Fusion, they're on the right track, as has been mentioned above.