Thanks for your feedback. I am currently working on a new camera system that will improve the overall feel of controlling your starfighter and fix the issues when ascending or descending during combat. It will be similar to the feel of Battlefront (2015) but retain the current controls. Additional camera angles that you can switch between is something I definitely want to do as well.
Adding the ability to roll is not something I am currently considering, since the flight controls are supposed to feel like Battlefront (2004), which did not have rolling.
As far as the Instant Action improvements, the only thing I am currently planning is possibly adding a queue system so you can play several levels in the order you choose, similar to the old Battlefront games. However, I may consider adding the ability to set the reinforcement count/score target.