That would actually be a pretty awesome map for the Zelda games. Lots of things to do, lots of different locations to explore, and variety of travel options to be had. Of course, Nintendo would have to be very ambitious to do something like it. And lately it seems they're not really wanting to push things forward.
Nintendo's stubbornness to stay the same with little to no innovation will be their doom. I grew up with their consoles and games, but they really need to take their characters and franchises a little further.
Id actually like to see some of their games take a bit more risk in terms of what they have and are presented artistically.
A darker, more mature Zelda is one of those (although you could say TP kind of attempted that).