I've done some comparison with the TV broadcast (I've used the RTL stream for now, but all of the TV broadcasts are mostly the same) and the bluray.
The edit is not very different, with the the most obvious change that the speeches have been cut. Oh well.
The editing is mostly made for better/smoother transitions between shots and a rare different shot here and there.
Opening titles have been slightly altered:
And this is the difference between the countdown on the live broadcast and the bluray:
Livestream:
BR:
Some examples. At the opening, audience shot has been replace by two shots, one of the bridge and one of the stage:
vs.
-----------
vs
And so on. So it's not very different, you probably wouldn't notice if you don't know every detail of the broadcast.
So, in conclusion: errors during the live editing have been smoothed out and the occasional shot replaced by another one for a better viewing experience.