It isn't very much likely, because there weren't any reasons to have a choice in the story right now. We have 4 romanceable options, so I'm sure we will have options to choose, not to mention that the story feels like its genre is mistery or thriller and these genres has a high potential for a non-linear story. So don't worry about it, it's not linear in my opinion, it's just the first build anyways. :D