As the PLUGIN develops with it's own code it could be a totally separate product with crossplatform installers allowing users to install on both Win & Mac (on the same month of the year) using the same audio format as you can with Kontakt, Tootrack and others. This will build a new parallel market of DAW only users.
How it works now 6 months apart is not sustainable down the track with double the cost or repeating the same work on mac compared to one crossplatform PLUGIN/PLUGIN Standalone.

If they are now making the PLUGIN play the wma sections directly so all DAW's as well as Reaper will have instant Gen/Play allowing you to work in the main Biab and instantly transfer to any DAW not needing BBW4 running in the background. The Transfer Tracks button you now have in the BBW4 Style Picker they can put in the main Biab.

So rather than just sending the wav instruction to the PLUGIN in Reaper it will send to the PLUGIN in ANY DAW allowing instant transfer of all or individual tracks.
These will be sent to the PLUGIN but stored in SavedTracks folder so they can be loaded into a PLUGIN track or dropped in any time.
They are not massive wav files filling up the hard drive, they are just small data files like midi:
Bass - 1011 Bass, Electric, BritInvasion Ev 120.RTrackTemplate
Bass - 1011 Bass, Electric, BritInvasion Ev 120_RC.mid
Drums - RealDrums=RockClassicBritEv^2-a Snare, Closed HiHat , b Snare, Open HiHat.RTrackTemplate
Drums - RealDrums=RockClassicBritEv^2-a Snare, Closed HiHat , b Snare, Open HiHat _RC.mid
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