I'd love to see a second multi-controller where the card-door release is currently located. While the vertical main dial and QCD are nice, this would make it a joy to switch AF points while using the vertical release. The only issue I see is that you would need to be able to lock/disable it while shooting horizontally to avoid inadvertent engagement. Surely the card-door release can be re-engineered. Other than that the 1 bodies are fantastic.
Just my thought while watching football. 

