I looked up expeditions last night after some suggestions here - their 2018 is going to be 2-300lbs lighter (all aluminum) and the 2nd gen 3.5L echoboost with low 400s HP and high 400 trq. Tow capacity in the 11000 range. Sounds like a great proposition but I'm sure the price tag even for base model would start at high 50K or 60s. That's a $1000 month payment - makes you think a few times putting some sheetrock in that thing!! :)
Maybe it will make the 2017s cheaper... I have to go put my hands on a Ram Mega and check it out up close and personal. Maybe bring my spare booster seat and see how things fit.