Maybe they planned to release it tomorrow all along?
It's verizon, they know if they have a phone that is top of the line (or right there with all the other top end), it will make news and it will sell.
Verizon seemingly always operates on their own rules and we keep paying them, so they have no reason to change.
One thing I'm 99% sure of, is that whether they announce it today or tomorrow... The release date is going to be the same for all of us.
It sucks I wasted today like all of you, but in the end, who cares, we are still going to get one hell of a phone.