I'm not necessarily saying this negatively, but from the looks of this trailer, Sweeney Todd might be the most Tim Burtoniest Tim Burton movie ever made by Tim Burton. Johnny Depp? Check. Helena Bonham Carter? Check. Creepy 19th century production design? Check. A color palette consisting entirely of black, white, and blood red? Check (save for Sacha Baron Cohen's lurid ringmaster Waluigi getup). I'm just worried this is Tim Burton's way of saying, "I'm dying, so let me get this all out of my system."
UPDATE: I just realized Danny Elfman is not present, so we can probably rest assured Burton isn't dying.