Well, not very much. (SPOILER ALERT) Fred is killed in the Battle of Hogwarts (SPOILER OVER) And the Weasley family are obviously very upset. But that's it...
No, the Malfoy family survived.
No, the only family member who died was Fred Weasley.
Everyone but Fred lived, George lost an ear, and Percy reconciled with his family
No, Narcissa Malfoy and the rest of her family all survived the series.
The Peverell family received the objects.Antioch Peverell : the Elder WandCadmus Peverell: the Resurrection StoneIgnotus Peverell: the Cloak of Invisibility
No, he goes on to live with Harry and family and receives better treatment and feels loyal to Harry in return.
The elf is called creature. Kreacher actually, but it was Dobby, but he was not stuck in. Everything else is okay.
Yes he quits his job at the ministry then climbs into the school and comes face to face with almost everyone in his family.
Yes, when Harry sees in his mind Voldemort killing Gregrovitch's family, he says, "It was like Cedric all over again."
The characters that are in the epilouge of the Deathly Hallows are the potter family; Harry, Ginny, Lilly, James, Albus Severus. Ron, Hermoine, and their child Rose, and their son Hug. They meet Draco Malfoy and his son Scorpius are also in the epilouge. The last character mentioned is Teddy Lupin.
In "Harry Potter and the Deathly Hallows," two significant characters who die are Fred Weasley and Severus Snape. Fred, a beloved member of the Weasley family and co-owner of Weasleys' Wizard Wheezes, is killed during the Battle of Hogwarts. Severus Snape, a complex character whose loyalty and sacrifices are revealed posthumously, dies at the hands of Voldemort's snake, Nagini.
Yes, probably because their friends or family work with movies and putting them in DVD's. Otherwise, it comes out on July 15th and you will have to wait.