No, it won't. It also won't change anything for US nationals who deliberately move their communications to platforms "hosted in Switzerland", which has always been a funny privacy move, because the US IC has blanket de jure authority to surveil foreign services; it's only the US providers that have these procedural protections.
The statute we're talking about here, 702, is what enables the IC to compel American communications providers to cough up data (about ostensibly foreign targets).
The statute we're talking about here, 702, is what enables the IC to compel American communications providers to cough up data (about ostensibly foreign targets).