Aaq, the rambam holds that there won’t be constant nisim when moshiach comes. “Olam keminhago noheg.” He doesn’t get involved in who will do the work.
Most don’t go with that rambam anyways. They ask on him from the huge amount of medrashim that don’t fit with it at least on face value.
Either way, my point about it being far more important to learn how to learn is true even if Jewish men will have to work at the time, because the main occupation will be in learning