I remember years back there were always big long threads of users wanting 64bit but PG said we don't need it as we have JBridge....but then apple banned all 32bit apps...then bang, instantly we had 64bit Biab.
PG would have to have other crossplatform development going on behind the scenes, up their sleeves, rather than leaving all their eggs in the one Delphi basket ?
The PLUGIN is a good alternative if they just get the generate code in it, then you have a crosspatform VST and VST Standalone that will run independently on Win/Mac without the need for the old Biab app running in the background, if anything happens to the Delphi Biab and it's 6 months later Mac version.
At the moment Biab, PLUGIN and RealBand all need the old Biab app to run.
So if PG are not already doing this in the background the best time is not tomorrow, not next week, but today.