For me i think the next features should include…
Aux busses / sends - the sends you have now dont have the same effect (pardon the pun) in my humble opinion
Individual track resizing - it would be nice to resize an individual track when youre done working on it and keep it small so it takes up less screen space and more for the sections you are actually working on. This is especially important with frozen tracks. Or even perhaps having frozen tracks take up the same amount of space than regular tracks. So when you have a bunch of frozen ones youre taking up twice the space.
Track locks - I cant tell you how many times ive accidentally moved, resized, nudged or straight up deleted tracks accidentally. If there was a way to easily lock and unlock a track when needed so you cant do a thing to it that would be great!