I'm at gold level and have batted about .500 since EUA started, down from what I'd guess was around .750 before. Still not enough flights to determine for sure, but it seems I get the e-mails only on the really sure things. I don't know that the borderline ones I'm not getting are going to the plats in advance; rather, I suspect they're being held back and allocated the day of flight according to the airport check-in pecking order (which I'm not familiar with).

Worst case, they have everyone wait until after they start boarding and call out names in a must-be-present-to-win system, so that if you're relegated to coach you get there when the bins are already full.