Pete tweeted something along the lines of "I don't want to say today and have it come out tomorrow, and I don't want to say 4:00 and have it be 4:30..." So reading between the lines, I think we can infer that they're
aiming for today. That said, since they haven't officially said anything, don't be upset if it doesn't come until tomorrow, or even Wednesday. (And after that, don't be upset if you don't get in, since realistically we probably have less than a 5% chance of actually being selected.)