Here's the direct quote :
"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," he says."
What does this truly entail ? He could expand it, modify it heavily or it could have just meant the same world as the "same space in the timeline" just like Spirit Track and Phantom Hourglass where part of the same world as Wind Waker.
Yea i feel like he means the same hyrule in sense of the same universe of BoTW, like he won't say if the game happens in space or underground lmao he said he won't say anything about it. Zelda games are always deadly different from one to another, if it happens in the same map, it will be heavily changed or else the game would literally have been done by now.