Will it show Dora Tonks die in the movie?

it might but i t might not its hard to say a definite answer until you actually see it. the deathly hallows movie is that long that they have even had to split it into two parts. we don't read in the book how Dora died...... but you never know- the directer may decide to see her getting killed or just show her dead body-like in the book- with the other people who died in the battle of hogwarts