In order to keep the scope from spiraling completely out of control, we have to make the story referential to the previous chapter rather than continuing on four wholly unique paths. Certain events will transpire no matter what, but the way Lillian, Anton, or Émile react to those events will be shaped by what they experienced previously. We're building in story choices into each chapter as well that will lead to different endings.
And yes, Lillian will be seeing both Anton and Émile again 💗