This is my opinion of how it could go. Pure!y hypothetical.....
The BGs are only for a few select attractions. For those that don't get their preferred choice or are waiting for their boarding time, all other attractions would have standby lines open and available.
Some may choose to forego trying to get a BG and just hit as many standby queues as possible. Should be short wait times if any for many attractions as many people will be focused on their BG time.
Strategy will be part of the fun. But for those who may have limited time on property, a BG time may be their best chance to experience the signature attraction of their choice. Everyone wins!
There's a thread for BG discussion that you know exists since you've posted in it. It's off-topic here.
This thread is for the discussion of whether BGs are a good or bad idea. When should FP be introduced if at all? This is to keep this discussion out of the thread reporting on BG status. Anyhoo... have fun. Here were my ideas on the subject... I would think a lottery system in which every...