I don't work for, or speak for JRiver. I'm just a customer.
I also don't know their plans, but I suspect this is a very low priority item. In the mean time, there are numerous other CD burning programs for OS X, many of which are free.
I used to use "Burn" for occasional audio CD burning, but it seems to not support FLAC any more. I don't really have much of a call to burn CDs anymore, so I haven't investigated further. I'm sure you can find a suitable program with a little bit of research. Or try Burn if you don't need to use FLACs.
Brian.