I don't even think that is an issue with this game, if you've been following what Nintendo has stated during e3. You can literally go to the final boss shortly after you start the game. Seeing as you probably won't be that prepared for the battle you will most likely die, but they state it is in deed possible for one to play the game how they like.

you can play the game with your own style, 10 hours or for 100 hours, the choice is yours.

That's good to know. I usually spend 30-40 hrs max on games before getting sick of them. 

Ive said it before and Ill say it again.

ZELDA BREATH OF DA WILD GAME OF DA YEAR 2017!!

In every Zelda game you have multiple different methods for traveling (walking, horse, flying, boat...) and you have teleporting, its said that those shrines (they are more than 100 of them in world) will be also used like teleport points also.

Nintendo already said you can go right away to final boss if you want, but most likely you would not do well if you do that. :)

For 3DS Zelda never really was problem to top some other game, especially actually great Zelda. ;)

How you know that problem is here balance!? Do you realise that whole Great Plateau region from Demo is basically just a tutorial, where Links get familiar with mechanics, weapons, enemies, shrines...do you relly thing whole world is exatly same like Platue region!? Off course not, Link will find stronger weapons and armor, but also there will much stronger enemies and mini bosses, much harder shrines and dungeons... Even Guardians at Plateau with one shot take you if I saw correct 7 pieces of heart, Nintendo also said there a places on that you cant go if you are weak.

The problem with open-world games will always be balance, hence why I made a generalization, I was not just talking about Breath of the Wild. You can obviously try and tell me that progression system will work perfectly fine, but neither you or me know about that until we actually play the game. Zelda franchise has never been a very difficult one, and how Anouma wishes to punish or gratificate players should somewhat make the world scale with it or else, again, we'll face the problem that the open-world will become barren at one point, being nothing than an annoyance that stands in the middle between Link and his next destination.

The amazing Zelda gameplay in such a big world is definitely something that excites me a lot. What they showed of the Great plateau was really interesting and didn't feel empty at all. I'm betting the rest of the game's world will be even more interesting than the plateau. I can't wait to see the towns and NPC's. I'll spend so many hours in this game.