I don't believe there will be a Ram Runner from the factory but the Ram Rebel should be coming out soon. Bigger tires from the factory seems to be the best option on it over the Outdoorsman. I have a 2014 Outdoorsman that has been great over the past year. the Hemi, 8 spd, and 3.92 gears are a great combo but I hear 3.21 gears are just fine with the 8 spd and might get you an MPG better. A loaded Outdoorsman with standard options like 3.92 gears, limited slip, 32 gallon fuel tank, towing package, 17in rims with e-rated all terrains, and .75" higher than other models can be had for 35k new. A nicely equipped Express can be bought for 30-32k although the discounted price is not as much as the upper levels so the SLT/Outdoorsman models are a little more bang for your buck. A truck a year or two old with low miles could be gotten cheaper but the 13+ with the 8spd is the way to go and if you are planning on keeping 10+ years over 200-300k miles you may want new or below 10k miles on a used.
I believe Ram, Chevy, Ford are all good trucks and other than an odd failure their V8s can reliably make to 300k. Dodge just happens to be my choice and is all I buy. There are allot of domestic haters out there but all of these trucks are good.