LeBron stays in Cleveland and gets someone, maybe CP3
The Knicks will get someone else, maybe Tony Parker, maybe Carmelo, and they might be able to keep David Lee.
The Heat got their guys.
The Bulls got better with Boozer.
The Celtics will keep their core intact.
The Magic will keep their core intact.
When all of the above happens, the East will have just gotten hyper-competitive, and the NBA will become a better product.