Page 1 and 2 of that article was shown here a couple months ago.
That's the article I revert back to when the argument the titan xd sales isn't doing well.
Reading that article they don't plan on selling 10,000 titans a month combined. That's new regular titan, titan xd and fleet.
The new regular titan is going to be the main bulk, followed by the gas xd then the diesel.
So realistically they are happy with under a 1000 diesel xd's a month once all cab and trim levels are released.