These may have been suggested ... I don't know. 1) Group chat, if possible, to allow for roundtable chats. Allow the Group function to have a filter for All or to filter-allow only selected call signs. This filter would be like a selective squelch to allow multiple simultaneous chats. Not private, just selective.
2) A Tune button and/or auto-Tune function. The auto-Tune would initiate a short tune transmission after selecting a new band/frequency before the first transmission. Maybe transmit "callsign-tune".
3) More canned message fields.
4a) Options on Send File to define file send/receive maximum size and to disable gzip for already compressed images.
4b) Some type of option that uploads oversize files to a defined cloud account, transmits the link and VarAC retrieves the file automatically if Internet connected or to be retrieved when Internet comes available.
5) "Heard" item that indicates All Heard, not just Beacon or CQ.