Yeah it did(was even called SaGa 2015 when it was announced too), but then they delayed it to releasing it this year in Japan. It's been a long time since we had any info on the game though.
7 months ago to be exact.
I watched the trailer once again and got excited like it was the first time. I really need this in my life right now. But since SE did not releast the Vita version of SaGa2 I don't think this one has a chance of crossing seas as well.