I'm not saying they are not going to release ASP-C cameras ...
Good; I was in part addressing the predictions of others in that direction. (The ones that ignore the greater lens costs needed get added value from a 36x24mm format system compared to a mainstream 24x16mm one, even if the 2.3 times larger sensors were to magically stop costing many times as much.)
... I'm saying what gives them more money ...
Yes — but as I said, it is DX that generates the most revenue for Nikon DSLRs, not FX! Thom Hogan discusses these market share and revenue share data from time to time.
But in all the latests imaging division market reports that Sony gives to its investors, a phrase similar to this one is very common: "Camera market shifting to high-end value models", like this one: https://www.sony.net/SonyInfo/IR/library/presen/er/pdf/18q1_sonypre.pdf
"The high end amongst all [Sony or Nikon] cameras" is different from "the high end amongst
interchangeable lens cameras"; the industry-wide high-end goal clearly includes moving away from the struggling low end of the compact camera market to sectors including larger-sensor and super-zoom compact cameras. All ILCs are solidly in the "high end" of cameras as a whole (even excluding phone-cameras!)
Actually, Chrysler Dodge did exactly that. In 2008, they switched to making only the more expensive and more profitable Grand Caravans and discontinued standard size (and more eco-friendly) Caravans.
I am tempted to quip that Chrysler Dodge is not an example to follow, having been acquired by also struggling FIAT, apparently at no cost, and for the sake of little more than the Jeep brand. More seriously, the analogy fails because DX models account for the solid majority of Nikon's DSLR revenues, with the cheapest being the revenue leader; I doubt that was true of the lower-end Caravans that were discontinued.