The chord track another feature that was popular. I've long requested a midi chord device, but I've never used Cubase, so I don't know the chord track, and if that would serve the purpose, but I think it's along the same lines. Both ideas received a lot of votes.
There has been a lot of fixes. a lot of integration advancements, such as ARA (which is amazing), but the focus for me feels like it towards mixing. Many are in favour of this, but in the compositional side, there has been improvement to audio, not to MIDI. I personally think the balance is off. It's not like MIDI is dying, the soft synths and samplers are more capable than ever, and what they can produce is still advancing.
Admittedly ripple editing would fall into both MIDI and Audio functionality.