Given that AI is particularly useful at increasing alignment (when applied smartly), and that this is often a role delegated to middle managers, it is quite likely that flatter orgs will happen.

The need for top-tier technical, product, and business judgement and problem engagement will increase, while the need for muddle-through managers and similar roles will decrease.

We'll see more initiatives organized end-to-end by small groups of smart people, with virtual teams/coalitions forming to bypass "archaic" processes and deliver meaningful results. We'll see a lot of sloppy failures along the way too, but the overall trend seems clear.