It's very possible, Orlando is going to have a very tough time this series if the Celtics play their style. The Celtics can play Dwight one on one and not leave anyone open for threes, this pretty much nullifies Orlando's game. The Celtics are the worst possible team the Magic could have ended up with, they have bigs to play Dwight and foul if he gets past him, and have all the advantages on the offensive end.
I originally thought Celtics in 6, but might be leaning towards 5.