Originally Posted by
Rivka
Once they changed Gabrielle Haller's trajectory (from the comic books), they kind of boxed themselves into a corner as to David's fate. He either destroys the world b/c of the Shadow King, or he moves forward without the trauma that caused the DID (dissociative identity disorder). If Gabrielle is "Mrs. Xavier" and lives happily with her husband (although there's the hint that she will still have a mental breakdown at some point), all the things that affected comic-book David will never happen. (That is, Gabrielle kept David a secret from Xavier, they were never married and in fact she became pregnant as the result of a highly inappropriate doctor-patient hook-up. She was a single mom career-woman living through times of terrorism and war, Israeli ambassador to GB and she lived in different places around the world with her eventual husband, Dr. David Shomron, etc.)
There's still Harry Lloyd's Charles obsessiveness, though. Like in the comics, if he founds the X-Men, becomes obsessed with the school and the young mutants, neglects his own wife and son--things that happened with Amelia Voght in the comics--this could affect the FX Legion story. Also, one can only imagine all the hardships that will ensue (as in the comics) once governments and secret organizations get wind of Charles Xavier's school for mutants in the FX mutant-verse. But all that's speculation.
As for Farouk, it was an interesting time paradox. Nice Farouk who was helping older Syd got that way because he gave his younger, more evil self a blast of insight via those glasses. But the Shadow King in LEGION was always a survivor, a run-away-to-play-another-day kind of powerful mutant. That's why he hid from Xavier in David's mind to begin with. He didn't want to fight Xavier because he knew he'd be destroyed. So my interpretation of the ending of the series is, Farouk was facing both David AND Xavier in a fight and he brought out the beer instead of the weapon and put on the best show (remember, he likes putting on shows) possible to convince Xavier he wasn't a threat any longer. He knew Xavier's weakness (if you want to call it a weakness) for giving everyone the benefit of the doubt, for believing in redemption and change, for being non-violent, so he played it up big. I don't think he's really changed at all.