It will be a long time, yeah. :) It's a pretty large game. That said, this demo is a large chunk of the vertical slice. A lot of the hard work is done, now I need to fill the game with content. Items, NPCs, enemies, stickers, cutscenes, dungeons, etc (the last two taking most of the development time). So it's all smooth sailing from here. This isn't an official ETA, but I expect development to take another 2-3 years. I'm planning to do a kickstarter soon, the funding from that should help speed up development.