If AWAM ever gets this far, I agree with you that the Christine storylines will be important. Not only for Dylan/Ellie, but also as a specific path for Dylan/Christine. Many will not remember the earliest parts of the game off the cuff, but it was established early on, e.g. during the beach visit, that Christine actually likes Dylan quite much. While she teases him mercilessly, she finds him cute and would not be adverse to date him.I hope that this event will be as valueable as Dylan/Sophia, since it is an alternative to it. Also, it's Christine/Ellie but also Dylan is involved, which I think could make for a lot of interesting possibilities. But I don't think L&P will open another lesbian path here. To me, Christine seems to be more of a chrakter to help move the progress forward between Dylan/Ellie, as she shows interest in Dylan (even already have a BF) and thus opens a new perspective on Dylan for Ellie. It could be that L&P takes this further and use this update to strengthens the connection between Dylan and Ellie. Since Dylan, similar to Sophia path, has also already played a protective event for Ellie, a greater progression could well be possible here. We will see, but ultimately this event can have a lot of potential if L&P takes advantage of it.
No, I think the Christine story line is very important for Dylan/Ellie and should not be left out.
I theorise that there could be a decision fork coming at Christine´s party. On one side, Dylan and Ellie become closer, on the other side of the path, Dylan and Christine become closer, maybe even a couple, wheras Ellie either finds a new boyfriend there or reconcils with Logan.