I'd love to see that kind of reactivity, but I'm somewhat skeptical - you'd have to have an outcome for if you only allied with the mutants, one if you only allied with the raiders, one if you allied with both and one if you allied with neither. And you have plenty of loud users already whining about short updates (even when they objectively aren't short). Which is to say, I'd be positively delighted if the next update allows for Yuna, Fang&co to take center stage, but I'm not holding my breath - the two side-stories can be cut off completely so early (which the devs may or may not regret now), so incorporating them in the main story is costly (I'm sure they will be in the endgame, because to not do so would feel completely off, but before that...)
But hey, your word to the devs' ear