I would love to see a mode that features only biplane dog-fighting, similar to the "Fighter Squadron" mode in Star Wars Battlefront. The biplanes are the most exhilarating and unique aspect of this game for me and while the aerial combat in modes like "Operations" and "Conquest" is awesome, the focus is necessarily on how the limited number of planes support the ground team. I think there are interesting opportunities for large-scale, team-based dog-fighting that shifts the focus from ground to aerial combat. This would also provide an outlet for players who primarily enjoy piloting to spawn continuously into planes, rather than having to hope that a plane is free and/or wait on the spawn screen.
If I were to really dream big, a biplane focused operation over multiple aerial maps would be amazing, with each map providing a different gameplay opportunity. This was handled extremely well in the Star Wars Death Star maps.
Thank you for listening to feedback!