I state that I do not know if some are already active, and given my low level of English use a translator, so I apologize for any nonsense.
this and I think that would serve to grow powerful ardor.
many things are directed to the production of music for electronic music, still poorly developed on Linux.
bpm detector for when there is (usually voices) on an already exported in audio format
the ability to load the fonts directly and easily sount on a dedicated track or as a plugin like fluid synth but native and more responsive to load soundfonts.
sampler plugins of various kinds to play midi files directly from wave-style midi track and contact the native instrument battery.
editor midi and audio in a window below the main sequencer like Logic Pro for ease of editing (especially the midi of the piano roll ardor 3 alpha and very confusing) with access also to the mixer (comfort really useful)
drum machines plugins to be loaded above the tracks midi
simplify editing midi is doing that there is no need to change the button to delete or edit notes.
to move the order of tracks in drug-and-drop
duplicate tracks directly from a drop-down menu interface.
change the background color of the regions based on the fast track to recognize
own a virtual keyboard, and very uncomfortable to always go to select the external one for those who do not use it ...
for now these are the things that are lacking in ardor (and many even linux in general) that come to mind
for OSX Core Audio support
I want to point out that it is presumptuous but I think all the things I wrote would be very useful for the growth of the community of musicians and ardor of linux ...