The Wrangler is still around because there's a demand for it. Jeep actually made pickups, and those lines all went away because the demand wasn't there....Commando, Scrambler, Gladiator, Comanche all come to mind. The last Comanches were made in 1992. Jeep enthusiasts are loyal, but small in number compared with the Big-3 enthusiasts.
If the Jeep enthusiasts wanted Jeep trucks they would have bought more than 190K in 8 years (total Comanche production).
Bronco enthusiasts have been loudly calling for a new Bronco for 20 years, and that's no secret.