You know a fun way to circle back to the unresolved themes introduced in Season 4 re: Eddie following his heart and not Christopher's would be if Christopher and Buck have a conversation about Shannon for whatever reason (homework, it seems like) and Christopher mentions feeling like something vital is missing from his / his dad's / their family life. Eddie subsequently overhears this conversation and gives Christopher the letter from Shannon in hopes that reading his mom's words will help fill some of that gap, but he still goes full throttle in this thing with Marisol because now there's an unspoken "pressure" for him to provide that missing piece for his son (not realizing that there's nothing he can do that'll fill that void because Shannon is dead and she will stay dead). In allowing the story to unfold like this, that'll put Buck, Eddie, and Christopher right back to where Season 4 left them:
with Eddie, once again trying to perform with good-intentions for the sake of other people, without first tending to himself;
with Christopher once again being used as a scapegoat for Eddie's reckless avoidance of his own feelings;
and with Buck on the verge of an ill-fated dalliance with a temporary but long-term love interest that'll take him (hopefully) through a series of changes.
So that by the time Season 8 rolls around, they'll be right back in the same position to move forward with Buddie that they were back in Season 4, either with or without an external crisis to launch them together.
Hypothetically.












