Beyond the Giver book is a continuation of the Giver. Jonas reached Elsewhere, but he wanted to know what comes next. He goes trough out different adventures, until he finally accomplished his mission, and found his community completely changed.
Do not recommend15
But I know that the giver actually does continue... He goes thru with the sled to a community with gabe and they take them in kindly, in the messenger, Jonas is the leader they just say he came in on a sled and in Son the last book, they tell u that he did make it and that Jonas has a wife now and kids, and gabe is somewhere around 12-13 I think15