Unfortunately the story still ends at Boreas, and will probably never be extended in the demo. This was a bug fix, and a patch that addressed some issues that people pointed out (new battle UI, no more action sequence, intrusive minimap, etc.). The complete version should be out sometime during Q2 this year, or end of Q1 if I decide to have a few sleepless nights. I'm actually pretty well far in development since I've done the entire main story, with only the final dungeon left. However, I intend to add a couple of side quests before releasing the complete game.
Don't worry, I'll contact you when the entire game is finished and released!