I finally played the demo, and I really like it. It is a better version of the first Shrift in most points. This will most certainly be a buy for me, since I loved the first one.
With that being said, I really hope that there will be an english version at some point, because there seems to be a lot more story stuff going on than in the previous game, and I would feel guilty going in a genocide route by mistake. And unlike Shrift I's prologue, which was quite basic (wake up in demon-infested hospital, try to escape), this one throws you into a much livelier world.
If the developer checks this topic occasionaly, like he did for the first game, I would like to state: if an english version is available on release, it will be an instant buy on day 1. If not, I definitely buy it at some point, but it will have to wait until an english patches comes out.