Yet again their is no reason to believe it won't. Is it because you think the song doesn't fit the atmosphere of what was shown? It wasn't a dramatic emotional song, therefore it isn't going to be played in the background of a dramatic emotional montage of scenes. Its atmosphere did however have every bit of the feeling of exploration, and that's what the montage of the gameplay was showing. 

I've heard the previous available part a few hundred times by now, and the whole song certainly didnt disappoint. I honestly cant wait much longer. This game is what will define the Wii U for me when all is said and done, I am 100% certain of it and I absolute adore and love my Wii U

People are talking like FF15 will revitalise the JRPG genre.
PEOPLE PLEASE! This game is the one to watch out for.

The sooner it releases the better.

The music could easily be used for a scene where a hero gains a source of inner power or enlightenment after being put down, but being motivated by some revelation. In retrospect, it screams the "never give up" cliche that appears during an anime action scene when the hero is losing, but remembers what he's fighting for.

I think the snippet they showed definitely does fit what was shown, which looks like a title screen. The full song though, and the point of this thread, absolutely does not at all fit that "here's a taste of what you can expect from this game" vibe at all. I don't think they'll use it at all in that sence, and will rather use it for dramatic moments like what I described, which hopefully means that the cutscenes will be as well choreographed as the scenes in Attack of Titan, because that would be a monumental step up from Xenoblade, as great as those were.

The music could easily be used for a scene where a hero gains a source of inner power or enlightenment after being put down, but being motivated by some revelation. In retrospect, it screams the "never give up" cliche that appears during an anime action scene when the hero is losing, but remembers what he's fighting for.

I think the snippet they showed definitely does fit what was shown, which looks like a title screen. The full song though, and the point of this thread, absolutely does not at all fit that "here's a taste of what you can expect from this game" vibe at all. I don't think they'll use it at all in that sence, and will rather use it for dramatic moments like what I described, which hopefully means that the cutscenes will be as well choreographed as the scenes in Attack of Titan, because that would be a monumental step up from Xenoblade, as great as those were.

FFXV has a much larger audience, although both are similar in scope. Even if XCX turns out to be the better game, it won't reach as much people or impact as much people as FFXV if it turns out to be great. Either way, JRPGs need all the push they can get now a days

First of all, Monolith Soft is NOT Square Enix anymore. Second of all, the company is split into two. In 2011 they created the Kyoto Software Development Studio which had at least 30 developers in 2013. This studio co-develops games with Nintendo EAD. So at best there are 93 developers working on Xenoblade Chronicles X (and it's unlikely that this number never changed during the 4 year development cycle). Not every employee is a software engineer for that matter! Not by a longshot! 

Take this for example: 

"Article ends with a call for job applications for 3D CG designers, effect designers, and motion designers. 
-The absolute minimum monthly salary for an experienced worker is 185,000 yen (US$1,837), up for negotiation based on experience and skills. There's also 2 annual bonuses, an annual wage rise, health insurance, and up to ~US$500 support for work related transport costs on top of the salary."

"Staff has a high proportion of women, many staff in their late-20s"

http://gonintendo.com/?mode=viewstory&id=206706

Nintendo would never allow for development costs so high. They are unwilling to make a standalone Fire Emblem game because they predicted it would need to sell 700.000 copies on the Wii U in order to be profitable. That's why they decided to make a crossover with Shin Megami Tensei (to split development costs and to broaden the audience). 

http://wiiudaily.com/2013/07/fire-emblem-for-wii-u/

The development cycle for this game is unusually long however, which makes me wonder why. 

Okay, but it's not a title screen. 

2nd part is pure speculation. No reason to believe they won't.

...Yes there are. There's no reason to write a song with two minutes of build up if you're now building tension for a dramatic. To not use it for something like that would be poor sound design, and knowing the composer and the prior ways these types of peices of his have been used, we won't be seeing something like that here.

Yet again speculation based off of two examples shown from a different series. This is only reason to believe in the eyes of someone who wants to believe.