At first, I was thinking November 11th, because there hasn't been a trailer released yet.

But it's almost like they're releasing information backwards from how they did last time. For 2.3, we had the trailer documenting a bunch of content, and then the somewhat daily updates on individual content.

For 2.4, we have no trailer yet, but have seen info on individual content.

Based on that, I'd say November 4th.