1) Cummins option in a Megacab LONG BED POWERWAGON!!!!! (SRW)
2) Bed should be made of plastic-- entirely. Some really thick HDPE #2 would work well. No dents, no rust, just a strong as steel. Perfect! Toyota has this figured out, so even Dodge could grasp it.
3) An innovative built-in bed rack system, like Nissan has on their trucks.
4) The biggest FOX bypass shocks that will fit--- stock!
5) Lower quarters and bumper should be covered with spray-in bedliner stuff like Line-x
6) Thicker sheetmetal
7) Better seats. How 'bout some thick cushy jobs with LOTS of side bolstering, built in heat and cooling, and inflatable lumbar? Oh, and make them wide-- lots of us Dodge guys are pretty wide (though I'm 6'1" and 215#, others are not)
8)HID headlights, from the factory. Taillights should be LED.
9) All interior lighting is LED, not regular bulbs.
10) *FULL* instrumentation with premium ANALOG aftermarket gauges. Make mine Autometer NV series. I want to know oil temp and pressure, intake air temp and pressure, coolant temp, electrical system voltage AND current, and exhaust temp and pressure (drive pressure). Yes, the dash would look like a cockpit, and that's quite fine with me.
11) Massive amounts of soundproofing and thermal insulation. At least 3/4" thick of premium damping material. Exhaust should be loud outside, but interior should be vault-silent. Double-paned glass, hermetically sealed, whatever.
12) Electric heat augmentation. You shouldn't have to wait for the mighty Cummins to warm up before you get heat. Install an electric aux heater for the HVAC so you get cab heat even with a warm engine.
13) Better OEM tires. The wheels are fine, but why can't we get something other than the crappy bad-for-a-year tires or the Michelin slicks? Ricksons would be fine with me!
14)Factory-installed B&W, the turnover ball with companion. Does it get better? OK, maybe the air hitch...
15) Carbon-fiber interior trim looks good to me. I also like wood, the the current wood-look is just too fake looking and plasticky.
That's all I can think of for now...