One of the very, very few things that Supreme Commander 2 improved on was the functionality of mobile factories that store produced units. All mobile factories in the second game can produce units while moving and stack units stored within by type, allowing you to quickly select groups of units for deployment.
Is this possible in FAF? If so, is there any chance we'll see it? Both of these features are quality-of-life changes that wouldn't make carriers stronger but would make them more functional.