The first factory has been launched into space. Its a pharmaceutical lab and the investors expect that they will be able to create valuable products in Zero-G that they could not create on earth.
Expanding the economic bounds of humankind with the world's first orbital manufacturing & reentry platform.
varda.com
Over time more engineers will come up with more products that make sense to produce in space. "Perfect" ball-bearings is something that has been described to me. So, 30 years, expect a variety of "factories" in space. Someone will have a "hotel" in space.
Will someone discover something on the moon worth mining? Probably not. Will our corporate overlords convince governments (probably the US) to spend tax dollars on a permanently occupied habitat on the moon akin to the current ISS? Maybe.
Could be interesting.