I'm suspicious that Next Gen won't turn out any better for the consumer than DTV did. I see the bigger station groups being the much more likely (if not the sole) beneficiary of what Next Gen promises.
The proponents have been talking like they're absolutely certain that ATSC 3.0 will be the salvation of broadcast television. Maybe it will be, but many of them are the same people that gave us DTV and all of the features that did and didn't materialize with that technology and now they are pushing something new and incompatible ten years later.
I found the mobile part to be particularly disappointing as they're now allowing that tablets or greater will be required for the foreseeable future. The implication was that it would translate easily to phones and we perhaps believed them since the processing power is pretty comparable.
I get that people want to delight in what the future might bring, but I've been around long enough to witness that it isn't always as great as was pitched early on.