Looks like quite a few improvements- boxes frame, rear disc brakes, trailer brake controller, 8spd transmission, higher torque that should also come on much lower as well. Best of all looks like good payload numbers- maybe best in class.
I was never interested in the Tacoma due to its unconformable cabin and lack of power but if I'm in the market for a new mid-sized truck the Trail Hunter with a 6' bed would be on my list.
Unfortunately, I expect these to go for a premium based on the current SUV/Truck market and the fact Toyota can't see to build enough cars so expect crazy dealer markups.
I think the thing they have over GM and Ford is OPTIONS which is new for Toyota. GM and Ford have extremely limited powertrain combos, cab sizes, bed sizes and trim levels. GM only offers a full 4 door short box config. Ford offers a Supercab 6' box and SuperCrew 5' configs. With Toyota you can get Xtracab 6' box and the Double Cab with 5' or 6' box. Hybrid option depending on trim and a manual transmission for purists. 2WD with rear lockers is a new option for Toyota as well. It's way to early to tell but more info will come out on all the cab, box and drivetrain options available for each trim. If it was me, I'm going with an iForce MAX Double Cab with 6' box in an TRD-Off Road trim or Trailhunter.
If only Toyota actually let you order the vehicle they way you want like Ford/Chevy/Ram do. With Toyotas you put your name on a list for an allocation of a truck that the dealer you are working with may or may not get, and the regional distributor will add things to it you don't want.
At least with Ford and the others you can pretty much write out a build sheet, and the factory builds it for you. Not so with Toyota...it is frustrating. I own two of them