Mica Burton confirmed she's in next week's episode, so that must be the Geordi episode. https://twitter.com/MicaBurton/status/1636407184153251841
Most screeners were up to E6, not beyond, and some who saw them have mentioned Spoiler the fleet museum, so it should appear next week, with glorious views of historic ships
Matalas says in this interview that in the next episode is time to get the rest of the group back together https://collider.com/star-trek-picard-season-3-episode-5-spoiler-interview-showrunner-terry-matalas/ Plus someone on twitter posted one of the press photos early from the next episode and Spoiler: Spoiler about photos it's of Geordi.
I guess now that they know SF is compromised the best place to discuss the next steps - and even take those steps - is in a museum ship Imagine the possibilities: Changeling spies everywhere, so they take the museum ships out... each of them commands one... and we see all of them, the A, the Excelsior, the recovered D, Voyager, perhaps even NX-01, fly out and go on one last unexpected mission! "Sir, someone is stealing the Enterprise! And the other one! And Voyager!"
Also, he says here that the first episode Troi shot in person is episode 6 so she's there also presumably. https://collider.com/star-trek-picard-season-3-episode-4-spoiler-interview-showrunner-terry-matalas/
I don't think so. They have the way in with the chip. Geordi will be contacted as someone they might be able to trust and verify that he isn't a changeling. Whether they meet him before or after the station break in is TBD, but I expect it to be a small op and the Titan is not very discrete at the moment so my guess is that La Sirena is the ship that goes there. I think the breakin is the B-story and the reunion is the A-story.
So based on the Episode 6 preview photos, there's a B'Rel at the Fleet Museum. The end credits has a B'Rel cloaking device. They're totally going to be stealing a cloaking device from the fleet museum.
Picard: I can see you Vadic. Vadic: Picard! Picard: Can you see me? Come now captain, be honest with me, warrior to warrior, you really do prefer it this way don't you? As it was meant to be. No peace in our time. Once more unto the breach dear friends...
My wild fan theory: Somehow a Changeling of some kind has been living dormant inside of Jack Crusher and it's the key to establishing a new Great Link. Being in close proximity to other Changelings has begun to awaken it in Jack's psyche. We have never seen a changeling enter a solid's body, but given the way this is going and how they look different in the current iteration, I am guessing they can. This explains Jack's visions without diminishing the impact of Picard having a real son.
And Kelvin Kirk was a Lieutenant as well during most of ST09. Wtch the readout screen when they're trying to beam him and Sulu up from the drill site - it lists him as a Lieutenant.