Project section markers along the lines of Logic Pro - a track where you can block out sections of the project (e.g. verse, chorus, intro etc) and shift them around to change the arrangement with all the relevant parts of all tracks moving in sync.
A better interface for control surfaces than ACT, ideally with tablet apps available as well. Touch screens may (or may not) be the future, but even if they become common a remote controller is always useful.
Make it possible to save per-project preferences such as sending MIDI clock as part of a template. It gets tedious having to open prefs and tick a whole bunch of boxes every new project.