With online collaboration tools really taking off, especially with WebRTC currently on billions of devices, I have this unfounded belief that city centers will become less important over the next decade. There will always be work which is better suited to in-person setups.

Maybe it is more of a hope than a belief - but having a decentralized workforce has implications for cost of living and quality of life that are exciting. With (relatively) low-cost mortgages, home purchasing power increases at a non-linear rate, the more money you make. That is one reason why housing demand in cities can grow faster than wages.