I think it's way to early to even begin to wonder that. But yeah, I don't want the same map either.
I mean, even if they changed absolutely nothing about the world (which has maybe a 1% chance of happening) - you can be assured that they'd change the context of it enough to make it interesting again.Er, the wording is:
"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"
It's pretty clearly going to be the same Hyrule.
Cautious about this--exploring a new world was basically the entire point of Breath of the Wild, just reusing the same world doesn't sound very fun.
Yeah, I'd like an underground network. That's one cool way to retain a wonder of discovery and exploration.
Yeah, i don’t need devs killing themselves and starting from scratch with each game. Had there been (even) more stuff in BotW’s world I would still be playing it, so even if the base map is the same, having different/new towns, features and challenges in that world will be enough for me