I'm thinking we'll see weaker powers of shapechange actually be stuff like "encounter move action - you change in to a bird and fly up to your movement speed and then change back"
I think this has the ring of truth to it. The druid will retain its shapeshifting abilities in the form of specific shapeshifting powers, but I expect the powers will not be "You turn into a bird, so you can fly", but rather a Power that says "You can fly from point A to point B. You do this by turning briefly into a bird"
It's the effects, not the form, that it will focus on.
Tak, my little Chaotic Neutral Goblin Barbarian/Druid...I fear in the new edition, I will barely recognize you. We had some good times together, but it's probably for the best that you wildshape into a horse and ride off into the sunset...