I've posted on here before that given the state of technology, every single electronic keyboard instrument should have rudimentary arranger capability, such as an auto bass chord where a single note can trigger a full major chord and bass note. We're well past the point where it's a mechanical or electrical NECESSITY to press three or four keys and a pedal note.

Specifically, if Roland are out of the arranger market for good, they should imbue their MIDI controllers with Chord Intelligence and/or place their Chord Intelligence in the public domain so that it could be incorporated into tablet apps, etc. As a reminder Roland's system doesn't penalize you for playing all the notes. But it makes life much easier for those who never learned how to do so!