I'd rather not have RB adding memory cues on it's own... but would find phrase markers on the waveform profile very useful. Currently, the first beat (inizio) is marked red, subsequent beats are white (or blue when in beat grid edit mode.)
What would be great is to use another color for the inizio of every 8 measures. IMO, this would be set by either the inizio widget (the red/white vertical line button) for the first one in the track, and subsequent ones are set with a combination of that widget and the "make adjustment from current position" button, which covers those tracks with oddly phrased breaks and tempo transitions.
Seeing this intuitively represented on RB (or even the decks...wouldn't that be great!) would make it very easy to set loops and cues without too much time scrubbing.