1. Track boundary to extend downward to re-encompass Take Lanes like they did Layers, so that there's no mistaking Lanes vs. Tracks. Also make the buttons of the Take Lanes smaller or the Tracks larger. Allow separate background shade for Lanes.
2. Add "Entire album of Projects" export archiving tool to back up a whole album's worth of worth into a single, large archive file.
3. Offer a large-scale video scaling for large touch-screens and allow them to expand to up to eight 40" monitors, or the ability to "swipe" your way around a full-sized console.
4. Allow removal of the PC EQ. Allow the FX bin in the track to expand in height. Allow mouse-scroll to move up and down the height of a track, if the whole height isn't shown.
4a. Bigger faders. 120mm would be nice.
5. Ability to disable parts of the DAW, such as the whole MIDI engine, if you're working a project that doesn't use MIDI, or you don't use PC, Notation, etc.
6. While Editing give me the ability to refine my selection, even though we know it's possible to adjust after the Paste.
7. Create a "tester" for latency by allowing a test signal to be played, recorded, and then repeat, so that Sonar can actually measure a signal's latency through actual cabling, for example. This can manually be done (to the sample) using the metronome.
8. Give me a control for Zoom sensitivity using a mouse-wheel.
9. Give me (like Loop Construction window) a track view for a selected track. Maybe even one for all the Take Lanes. Since you can use the Inspector to look at the PC and console view of a single track, why not offer the converse when in Console View, meanwhile eliminating all other tracks from view. Yes I know you can hide the other tracks or use Track Manager to do this as well, but it's not nearly as easy.
10. Allow the solo'd Take Lane to appear in the Track when the Take Lanes are collapsed.
I have posted other ideas, but these are useful for me.