The annual meeting is already over. It's very highly doubtful that management gave anything away on Tuesday morning about earnings before the official release Thursday morning. That's not legal. Its easy to prove and prosecute.
It's highly likely there were NO negative surprises at the meeting, because that would have made the news. Also, no aggrieved past employee attempted to kill management at the meeting because that's not in the news.
Considering how badly YRCW has performed and how many employees have lost their jobs and lifesavings, no one showing up to attempt to kill management is a good sign.