In the order of importance to my workflow:

Many additional mixer tracks (Utility tracks)
2021 Multiriff feature
Microchords
Node / string audio edit for volume automation

And of course RT /RD and midi, but you already mentioned them smile

P.S. 64 bit program version. That is more technical thing, just a confidence/comfort item that program will work for years ahead, knowing there will not be headaches as with some of software titles.