Between another member's communication with e-rewards on the subject which was not reassuring, and my own unsuccessful attempt to get a response out of e-miles themselves on the subject, I'm assuming (my own call) that it won't be available again, perhaps especially given the change of ownership in e-rewards, so I've cashed in those e-reward points for something else and have taken e-miles for future awards, off my radar.

That's just me. You're free to hope for anything