What if the full Lincoln assassination plot went through?

Lincoln wasn't the only target that night. Two others were set to act at around the same time Booth did.

One co-conspirator was to kill secretary of State William Seward. He went to Seward's house, and attacked with a knife. But Seward survived his wounds.

Another was set to shoot Vice President Andrew Johnson at Kirkwood House. He knew which room Johnson was in, and Johnson was there that night. But the co-conspirator started drinking at the bar in the lobby, and got cold feet.

What if all 3 men had been assassinated?