Not only has Captain Phasma been confirmed to be alive, but it has been confirmed that she will return with a larger role and a new breed of stormtroopers. These new stormtroopers were seen wielding axe-like weapons that look similar to the weapon that a stormtrooper used to duel a lightsaber-wielding Finn. This would mean that these new weapons would be lightsaber-proof. It could be that these new stormtroopers are a breed that specializes in public executions and their weapons operate like halberds. Also, it is clear that Captain Phasma will be wielding some kind of staff-like weapon rather than her usual blaster rifle. I look forward to seeing Captain Phasma and seeing what her new soldiers are capable of in The Last Jedi.