It was always planned for release in 2015 in Japan.
I don't even think it has been confirmed for Australia, although with the surprising success of the Wii version despite a reluctant Nintendo in some regions, I don't think there's much reason for concern.
That's probably because this is viewed as much more of a minor upgrade, similar to the DSi (A system that people frequently forget had its own line of exclusive software thanks to having four times the memory of the standard DS line and a processor that had twice the clock speed, among other improvements).
Those that have mistakenly viewed this as Nintendo's next generation of handheld hardware really need look no further than the software situation to see that Nintendo obviously views this differently.
Maybe they're waiting for a game to actually be ready that showcases the improvements that you're paying for when you upgrade?
As much as this is simply a system revision in the 3DS line rather than a successor, it still seems foolish to launch it without a title that actually takes advantage of it.