The 2nd Edition of UEB (2013), page 32, shows 3 symbols for the natural, sharp, and flat signs. These are all two-cell signs, curiously starting with (3456), then the Braille Music Code accidentals. The rule (3.18.1) says: "Follow print for the transcription of the natural, flat and sharp signs within UEB text."
The examples in UEB show these two-cell signs following names of notes, in chord symbols, and in chord progressions, as well as "standing alone," all in narrative context.
Will transcribers need to use these two-cell accidental symbols in the narrative portions of music theory and other texts about music, when UEB becomes effective in 2016?