Not sure if ROON does not have a future. Best audio purchase I made was a lifetime subscription before ROON was even released for $450. I know they got sold, but I doubt they got sold to be shutdown.
The stuff you can do with ROON is unmatched. I have not looked at the latest Aurrender, but I doubt they have the same grand software road map as ROON.
I run ROON Core from a $500 DELL machine the size of my hand. It does not have a monitor connected to it nor a mouse and keyboard. The machine automatically starts up at 7AM and shuts down at 2:30AM so I am forced to go to sleep. I also keep this machine under a bed in my guest room (which has no audio gear in it).
I also have state of the art streaming sound using fibre and ROON READY endpoints (need streamers for that). This is in 2 rooms of the house, but it could be many more.
ROON is a killer system.