A lot of us have to wait till mid March or longer for Midnight to come out. But I've seen tweets from people in Australia(where it was released today) who have the book about events and quotes regarding DE.

WARNING: VERY SPOILERY



-Damon to Elena: "Will you remember? Just that...I loved once, just once, really, in my whole life. Can you remember that I loved you?"

-"There was no world for her if there was no Damon"

-Stefan apologizes for coming in between them, he didn't understand how much they loved each other.

-In the motel she held him all night because he didn't want to feel alone

-"'I want Damon back.' Elena hadn't heard quite this note in her voice since the day shed been told both her parents had died."

-"Her hands wrenched aside curtains that she somehow knew were there and her skyrocketing heart brought a name to her lips. 'Da-!'"

-"Damon was dead. Her head bent slowly until her forehead touched the glass."

-"In the end Damon had died to save Bonnie. Elena herself needed no more proof of his feelings about her. She would always love Damon, and she would never allow anything to diminish that love."

-he comes back in the last page of the book

that's all I have so far, feel free to add things in the comments if you know more.