When I upgrade BiaB/RB, I'm usually not all that interested in "50+ new features" etc.
I'm more likely to upgrade for new & better Real Tracks and Styles, including midi.

Why not introduce a new 64-bit BiaB/RB for those who need and prefer 64-bit,
while continuing to keep the 32-bit version available with minimal updating.

Annual upgrades would make all new features and extras mainly available for 64-bit,
with minimal upgrades (if any) for 32-bit along with whatever extras are suitable.

Boyd
Win10 - 16GB-RAM - BiaB 2019 - Mixbus 4 - Slate Bundle - Komplete 10 - Ozone 8 - Neutron 2 - Waves Gold
Ample Sound Guitars & Basses - Pianoteq 6 - SSD5 - SD3 - JamStix 4 - Omnisphere - UVI Falcon - EastWest Play
Sonarworks Reference 4 -