No, unless it gets ported to other systems, which won't happen anytime soon

Windwaker had the aesthetic that was really polarising at the time.
Twlight Princess launched on dated hardware in 2006
Skyward Sword had both dated hardware+less appealing artstyle.

If they launch a Zelda on up to date hardware or at least up to date visuals, whilst on a console userbase is still highly active (first 3 years) with an artstyle that doesn't limit its success, then sure.

I dont know. Others publishers made "real" games also (like deadspace, fifa, Assassins creed) not sure if nintendo will only make spin off mini games or real games

I thought it had by now... Probably never then.

Of course it will - all they need to do is go multiplat, visually make it look like Witcher 3, call it Legend of Xeldar and have Link look like this:



15mils, at least

if it ever has a realistic art style it might in the future otherwise no

Twilight princess didn't sell as well as I thought it would either , and I think it can be attributed to its name . anything with princess in the title is a hard sell to teenage males ( unless they were already Zelda fans ) in America . 

If it remains exclusive to Nintendo platforms, the answer in no. If it doesn't remain exclusive, then yes there is a pretty good possibility that it will break the 10 million barrier.

Interesting. Never thought of the name. I suppose you could be on to something, and if so, that's a real shame because that game is awesome and should have sold better.