I think we might see what we call F evolve into a premium economy product. 3-3 with the current pitch increases capacity by 50%. Basically just take the current seats we use for crew rests, and throw in some food and booze, and you have a decent product. With the 50% increase in capacity, they could reduce fares so that seats actually sold.

Because of corporate contracts that artificially inflate fares up front, plus FF bennies, we have almost no incentive to pay for an F seat. Reduce the price and rebrand the cabin as PE, and a lot more of us could get it to pass muster with the travel policies we have to live with.