So, part of me still has hope that tomorrow could be an announcement. The "core mechanics feedback" era of Tinto Talks has clearly been bookended as of last week's dev diary, and we're now onto, in essence, advertisement of more flavourful and specific mechanics and gameplay loops. Additionally, it's been over a week now since the event in Stiges and I doubt that Tinto would go through the trouble of bringing all these content creators to their studio to try the game (and likely record) if they didn't plan to have an announcement somewhat imminently.
On the other hand, there's been no fanfare from PDX or Tinto at all about "news soon!". Not that I'm expecting a PDXCon style event, but even an announcement livestream scheduled a day in advance would be something I expect, and we've yet to see that.
Like, correct me if I'm wrong, but even for recent DLC announcements from paradox there's been a day or week of teasers and a "Join us tomorrow at 10am for some big news!". We haven't even got that here (though you can argue that there's absolutely nothing to tease with EU5. It's all laid bare except for the release date and name drop.).
Since we've not even got a slight teaser, nor any heads up or news stream scheduled, I'm inclined to believe that we won't get an announcement this week. I could be wrong, and maybe they shadow-drop an announcement on some date without any heads up, but I just find that somewhat unlikely given that I can't recall Paradox ever doing that in recent years, not even for a expansion.