Simon Racioppa(showrunner and executive producer) said this about the first 4 episodes “Hopefully, they make you think for the next few weeks or… months… to just make you reflect on it, so that you don’t just forget it. That’s what I’m hoping people will take back.”
You could read that as him correcting himself from accidentally telling the truth that it’s a few weeks away and that he is not able to disclose that yet.
I suspect they at least don’t have a firm date yet, but I still think it’s most likely because they aren’t done yet and it’s going to be more like months.