It is possible that the DSMC informed the company of their recommendation, and the company set the call to let some things transpire between now and then.
What those things could be: (feel free to add to my list)
1. DSMC recommendation sent to FDA to halt trial. 5 days gives a small window for FDA to decide.
2. DSMC recommendation to continue trial.
a. Company is taking this time to decide if they want to unblind the data
b. Company is prepping to submit the data to UK and others.
c. Company is sending the data/recommendation to potential partners.
Im sure there are more possibilities here. And, admittedly I am trying to shift my focus from being irritated in the 5 day wait period to find out what occured.