So the question is how does Ford reverse this trend, and what are they doing to be proactive? Ce1 is a step in the right direction, but it feels like there's a lot more they could do. 

I get that idea but it’s coming at a hell of a cost to Ford and its dealers because  Ford is quite prepared to watch those former buyers go somewhere else. (not aimed at you..) That is not a recent strategy, Ford has been reducing and concentrating its product line up for at least the last two decades, starting with vehicles purposely built to sell to daily rental companies, then it was the other  less efficient body on frame models replaced by existing unitary body  vehicles, then it was getting rid of cars, the list goes on but each time, it’s about a vehicle “on the bump” that no longer make financial sense.   The elephant in the room is the way Ford designs and builds its vehicles  is now way too expensive and bleeds to much cost away to suppliers who now control a lot of that process due to computer controlled modules that are a compulsory just in time buy for Ford (kinda got them by the nuts)

A new unibody platform perhaps that underpins the coupe, a sedan, a gas powered mach-e, and maybe some other enthusiast stuff?

https://www.theautopian.com/38-years-ago-ford-tried-to-make-trucking-23-percent-more-efficient-and-failed-so-hard-it-doesnt-make-semis-anymore/    

And never recover the investments costs on the coupe alone.  Maybe with a sedan and suv coming it could work.t

The mustang would really benefit from a skunkworks style makeover. Lower cost, less weight, better quality, doing all of that would take the mustang to the next level. 

That is what I saw when I was there....several were in the bays being "massaged" into Shelby's....

Mach E seems to be suffering the "creeping Ford rot on the vine" disease....Ford adopted the NACS standard, what...two years ago? Yet Mach E still does not have an upgraded NACS port....Why? It seems like it should have happened at least a year ago....nope, just stick 'em with an adapter and ignore the car. That's my main complaint about Ford and I am a fan AND a shareholder. Frustrating. 

As far as I know, Shelby Mustang conversions are done at their facility in Las Vegas.

This is good news that they're applying the CE1 learnings to ICE products:   Ford’s EV Skunk Works Tech Is Quietly Reshaping The Gas Lineup Too | Carscoops   Speaking during an earnings call, Farley said the platform “represents a step change in efficiency and cost, especially for the EV market.” While the company has been touting those benefits for awhile, the executive revealed they’re now integrating these “skunk works breakthroughs” into their mainstream products and processes.   He went on to say the Blue Oval is applying learnings from the program to their high-volume internal combustion and hybrid lines, and this will help to reduce costs as well as improve quality. Farley added that by the end of the decade, 90% of their global nameplates will offer electrified powertrains including hybrid, electric, and range-extended options.