It won't. It will be like every other Nintendo handheld, older generation formats will be around for awhile. I mean there are games still being made for DS, so I doubt the New 3DS will spontanously become the default format anytime soon.
The only reason I have a vauge interest in the system is because my 3DS is almost on its last legs and I've always wanted to get XL. But hearing that it only takes Micro SD cards means it might be a pain to transfer all of the stuff over which may not even be worth the effort.
Wouldn't be nice if Nintendo allowed you to trade Club Nintendo points for a New 3DS or knocked the price off a little? Then that's not Nintendo. Nintendo has done anything logical its 125 years of existence, so why start now? 
My 3DS is kind of on its last legs as well. Frequent abuse from a younger cousin of mine through out the years is kind of to blame so I've always wanted to get an XL. Now I'll just have to wait until next year to get a New 3DS XL thing.
I believe they stated at E3 that there would be a separate 3DS attachment for Amiibo.
According to Iwata, there are several games being developed exclusively for the system, including the Xenoblade port. This isn't a new thing for Nintendo to, especially for the handheld market. I remember when the Gameboy Color came out and games started to be exclusively made for it which split the market, until the Color slowly became the preferred format.
I agree its pretty obivious that Western release guarentee because its Pokemon. I just threw out the Mario Kart idea because Nintendo is just weird around arcades.
If it did, it would be either Dave and Busters or Chuck E. Cheeze's. Frankly I perfer Dave and Busters. I've seen too much footage of Five Nights At Freddy's to make me ever step into a Chuck E. Cheeze's again.
From the day 1 that Hyrrule Warriors was announced it was clear to me that Koei Temco wanted to Fire Emblem. It make sense for the structure of Dynasty Warriors to fit Fire Emblem structure. I bet they got Zelda because Nintendo figured that if they could make Zelda a seller, which apparently Zelda isn't a big game in Japan, they would eventually get Fire Emblem. Unfortunately, the game is not doing so well in Japan right now but maybe the Western release will change that.
I'm so sorry to hear you had a bad day. Do hope things get better.
