BMW is considering an entrant too.

Apparently another automaker feels there’s a market for a luxury off-roader:   An Unexpected Name Looks to Take On the Land Rover Defender with Its Own Off-Roader The Mercedes-Benz G-Wagen and Land Rover Defender are supposedly about to get another contender.   https://www.gearpatrol.com/cars/a-new-boxy-and-rugged-4x4-from-audi/   The story provides good reasoning to join the market.  I think Lincoln could do it better though. 

Navigator at least got a unique front/rear look, even if changes inside were minimal.  LT got even less - a grille insert and some red reflectors on the tailgate.   I think they were scarred by the Blackwood, which went too far differentiating (i.e. making the bed useless), so they did too little to justify it for buyers.  Keep in mind too, by the time they had the LT around, the Navi/Expy had been decoupled from F-150 (i.e. no shared front ends/interiors), so the market was demanding higher differentiation.

1) Electrics still have air intakes (usually on the bottom, as you point out) 2) the article speculated that maybe it's a PHEV, and mentioned Toyota has some sort of new compact 4-cyl design

Outright neck snapping torque is not a major factor in Bolt sales and it's target audience. 

Same as Cadillac....little invested...gone and forgotten. AKA, a flop. Meanwhile GMC makes a luxury version of their truck that sells well enough to continue at the top of their market plans. 

Ford did the same with the LT,as they did with the first Navi. Just a badge job at first...to test the market....little did they know they would start a new segment.  Ford did the same with LT... just a badge job, didn't take off? Oh well, little invested in it.  

Wrong thermostat.  

The Cutlass name was first used on the 1954 V8-powered Oldsmobile sports coupe concept that was about the size of the future F85, where Cutlass was the top trim in 1961. All the permutations (Supreme, 4-4-2, International Series, Ciera, ad nauseum) started in 1964 when Cutlass became the model name, and ended in 1999. 1954 Oldsmobile Cutlass Sports Coupe Concept:

Just buy the F-150 from the same model year and swap the grill insert.  Done, faux Mark LT.