The change to dreadnoughts not being removed outright from immobilized results after a Stormraven gets blown up is a pretty nice gesture. I guess it reflects that the immobilization could have occurred on landing as opposed to in the blast.
I just had a giggle thinking of a Dreadnought tumbling out of the sky, bouncing along the ground and landing in a heap, then getting up shakily and grumpily dusting himself off. "Never again... Sarcophagus smells like puke now..."
Vendettas without 'Scout' is a sad but necessary change. No more swooping in from the flank and penetrating a Predator on a 3+. I wonder if Death from the Skies changed up the points value.