Kinda doubt they would save an announcement for shot show. I suspect if it's going to be NR the minute they get the notice of final status they will announce it so they can start raking in the dough, and estimate what they need for a production run (or runs) based on initial pre-orders and other such businessy stuff. I could see them waiting until an opportune time of day, like if they find out at 5pm they might wait until 10 am the next morning or something.