Typically GRs have a lot of quantity, though the numbers for the MiUSA/UK lines might be different. I've just seen a few pages that had countdown clocks, which is strange for a non-collab release. There's even been a raffle on a few sites. I'm trying to remember any shoe that had a raffle that...
The initial thought was it would be in October, so a full month more to let the September event run it's course seems reasonable. @rfx45 makes a good point about the filming getting in the way.
Ah figures. I really like them, but I was hoping for a miracle that they would go on sale somewhere. Chives are nice too, but they both seem to be the hot item right now.