To be honest, I think T-Mobile is going to do it again.
It sounds to me like T-Mobile's 5G rollout is going to be on their [600' and some [800] arrays, in order to avoid having to build an ocean of ultra high frequency microcells.
Although, technically, they will be able to get into the range of speed and range of latency that is 5G, it's not going to be like Verizon's 5G with all those microcells all over the place.
But the advantage to what T-Mobile is doing is that we'll be able to get better than LTE-A experiences even in remote, rural areas.
And they say that in metro areas their signals will be more pervasive than the Verizon and AT&T signals.
All I know is that Legere is crazy, and I haven't seen him take a bad step yet. So...we'll see!