Or, at least, it looks like they have. There's nothing here that you couldn't have guessed from the trailer / stills / IMAX footage we've already seen.
For example, we know that Joker and his henchmen have a scrap with Bats at a party, so that's: 49. Thug at Party, 50. Gentleman at Party, 51. Male Guest and 52. Female Guest covered.
But perhaps we're being cynical. After all, there's been so much misinformation spread about Knight we'll only believe it actually exists when we sit down to enjoy it.