The harvest is tough work but it's the only well-paid trade left in agriculture. I doubt it has much future beyond fodder for high peasant magazine articles. Trees are dying left and right from multiple climate-related problems no one has a handle on. Divestment from the traditional montado like mine into intensive production units with better water management and automated extraction is the likely future. The billion-dollar outfits have started experiments with high-density groves, inspired by the olive oil industry's success. It's a finicky tree though, so conclusive results are taking a few decades more than you'd expect to materialise. They're stuck having to buy cork from thousands of traditionalist family farms for now.
But that's assuming the industry even grows enough to justify the investment into better plantations. Legitimate uses for the stuff apart from wine corks are scarce. We're all hoping that our phenomenal ecological footprint will see us grow as an industry into everything from insulation and roofing to shopping bags and umbrellas (hence said puff piece I imagine). We'll see, it really is a phenomenal material and the carbon math makes sense at the source. You can almost see the tree sucking out stuff from the air and soil to build thicker layers of bark. I joke that we've been doing regenerative farming for generations, we just didn't know it until someone told us.
If anyone on HN is ever in Portugal and wants to visit a montado, happy to take y'all on the most boring tour of your life. But we can have a nice picnic! It's lovely country.