The Legend of Zelda Breath of the Wild is the ideal open world game realized. In Breath of the Wild you are an adventurer and you feel closer to actually being Link in the land of Hyrule than ever before and unless they make a very similar game, it will probably be the closest you will ever get (except for maybe VR).
The way the story is handled compliments this open world in a way that has never been done before. Knowing you can go right to the ending at any time and deciding not to really gives you that feeling of freedom. You know you can go to the ending but you may feel unprepared and by your own will you decide not to go. That is a feeling that you won’t get from very many games.
This freedom is a two way road though and the negatives I’m sure are one of the reasons we don’t see many games like this. If you give players the option to do whatever, you don’t know if they are actually going to do what you want. They might not have the best experience you can have playing the game and that fear is probably a factor in why a lot of open world games still feel very linear. Breath of the Wild in a way isn’t an exception to this negative. You can miss things that might have made the game a little bit more fun or missed an interesting challenge, but Breath of the Wild throws so much out there that even if you miss a lot you will still find something to love.
Having the option to do whatever whenever isn’t enough to make this the special game that it is. Not only have you probably chosen not to beat the game immediately but you want to see what the world has. And that world will keep you entertained, there is so much sprinkled everywhere that you will get addicted to discovering this world. You’ll find that the world is so interesting and entertaining that the game isn’t about beating it but making your own journey.