In my opinion the book title should be something like “Jonas – The Receiver of the Memories” like my blog name, because the current title “The Giver” doesn’t give you any information about what the book is about neither the cover does and I think the new title would give you some hints, that there is a boy, who will be or is the Receiver of the Memories and that he receives memories.
Therefore I would change the cover too, to give you a first clue, what the book might be about in addition to the title. I didn’t find a picture nor could create a picture, which fits to my imagination of the book cover so I will describe it.
At the book cover you see a boy, who has lighter eyes, and a old man. The boy is lying on a bed an the old man has his hand on the boy’s back. The boy has a thought bubble above his head, which contains the memory of riding the sled in it. At least the book cover itself should be in black and white, only the thought bubble I imagine to be coloured
All in all the new title should give you the information that the boy Jonas is the Receiver of the Memories and the book cover should show you from whom he receives them.