I'd like to request separate meters for Midi and Audio data please or the ability to have Midi Meters Non Segmented and custom colored while keeping Audio Meters Segmented.  This allows you to see what type of data a track is receiving at a glance.
 
I'd also like to request Countdown to Playback.  Just as Countdown to Record is useful for getting the groove and preparing yourself to record a track, Countdown to Playback allows you to get ready to Practice a part before committing anything to recording. I've been asking for this since version 8.5 so hopefully version X4 might see this added.
 
I use this all the time in another DAW and find it really very useful.

+1 on meter differentiation by type. Would actually like an option to just have a midi activity light in lieu of a meter for midi tracks. but a different colour/segmented versus not etc would work too. Great idea.