anyone know why its ends with to be continued after a few days?
Sure. That's because version 0.2 of the rebuild does not have more content than that.
1. Nothing more to do. In theory the player could continue playing after day 6 and when using the mod that's possible, but there isn't much to do that can not be completed within 6 days. A few actions could still be performed in theory, but if the game didn't end then, he would be limited to repeatables at some point.
2. Eric. The beginning of the Eric storyline is scripted time dependent. He appears on day x for the first time for example. But that has not been implemented yet, so the player must be restricted to progress after that day or the game will be bugged when he finally makes it to the game.
3. We don't know if there are other time dependent story arcs planned, the lawyer arc could be like that.
If you want more content, you should play the old version 0.9.
For more content in the rebuild version you'll have to wait.