"Golden Sun: Secrets of the Ancient Temple gets announced for Nintendo 3DS with a first trailer and will launch in 2016. More details will come in the future."
I hope this 'leak' is fake. That name is absolutely terrible and does not incite one with much enthusiasm.
Judging by a lot of the content listed I would say the first leak is definitely fake. They may have made a couple of corrects guesses, but the amount of things that they listed simply makes it coincidence. There is no credibility.
The second leak has some more possibilities of having some actual potential leaks, however, this leak still appears to be very doubtful.