But the big pink elephant sitting in the middle of the room....
Will they require existing channel 14, 15, 16 TV stations to move? If not, there is still the interference issue plaguing many T-Band systems due to ducting.
I don't believe there were ever any plans to move TV off of channels 14-20 (470-512). Public safety will always play second fiddle to TV on a "shared basis", with the TV stations being afforded protection, not the other way around.
Given that they just completed the final phase of the TV spectrum repacking, which included a number of stations moving
to channels 14-20 (not the other way around), it seems highly unlikely that public safety will ever get any relief on the T-Band channels. Sadly, the repacking has only made things worse in some areas, e.g. NYC is all of a sudden experiencing interference during periods of ducting on their 482-488 frequencies (TV Ch 16), which was previously not much of an issue.
In some respects, the T-Band giveback would've been something of a blessing for some areas, such as Morris County. If a successful auction had brought in enough funds to pay for relocation to 700 MHz, it would've alleviated the bulk of the issues with ducting without putting the burden on the taxpayers to foot the bill to relocate. Obviously in other areas such as NYC, having to abandon T-Band would've been an absolute nightmare, and it seemed clear for years that no auction of that spectrum was going to ever provide a fraction of the funding needed to relocate public safety elsewhere.
And so now, life goes on. Those agencies that were banking on getting funding to move to 700/800 will have to either remain on T-Band and put up with the interference during periods of ducting, or figure out how to pay for new infrastructure and subscribers on their own.