We are thinking about adding an “ask” feature to the Bongiovi DPS computer products. This exists in the Mac version when someone inserts headphones into the jack.
To expand that function further we can “keep an eye” on the audio system. If the user has “ask” enabled, then DPS can open the Settings window whenever anything changes in the audio system (in this case the change would be a Bluetooth output appearing). At that point DPS could “learn” what the user’s preference is.
While DPS can’t “know” to switch to a Bluetooth device automatically it can learn by maintaining a dialog with the user. Does that sound useful to you?