The Legend of Zelda: Breath of the Wild currently has a sequel in development for the Nintendo Switch that seems to take place shortly after the ending of the first game, so the version of Hyrule that appears will use the same map from the first game.
Eiji Aonuma told Game Informer that the sequel to The Legend of Zelda: Breath of the Wild won't be made from scratch, but will use the map from the first game, as there were still stories to be told in that setting.
“One of the reasons we wanted to create a continuation was because I wanted to revisit that Hyrule again and use that world again, while incorporating new gameplay and new story,” Aonuma said.
There is at least one key aspect of the world that will be different, as Hyrule Castle is shown being torn from the ground and rising into the air during the initial trailer. It seems likely that Link (or Princess Zelda) will need to complete quests on the ground in order to gain access to the castle and deal with the undead threat that appeared in the trailer.
The version of Hyrule from The Legend of Zelda: Breath of the Wild was majestic and was full of life, but there are likely many fans who have seen all of the sights within that version of Hyrule and will want to experience something different in the sequel. The question now is how the developers will change Hyrule in order to justify a return in the sequel.
It's possible that the sequel to The Legend of Zelda: Breath of the Wild will have more of a focus on expansive dungeons and will bring back some of the classic items from earlier games in order to change how Link can move across Hyrule, such as the Hookshot or Power Glove. It's possible that a few hundred new shrines could appear out of nowhere and that the cities of Hyrule will have more expansive quests than the previous game. There are a lot of options available to Nintendo and it's unlikely that Aonuma would return to the Hyrule from The Legend of Zelda: Breath of the Wild unless he had a lot of new ideas for the setting.
The sequel to The Legend of Zelda: Breath of the Wild is currently in development for Nintendo Switch.