Yeahhhh...I was *not* prepared for that discussion!
What was decided was that Beren and Lúthien would go to Brethil to recuperate from Beren losing his hand, giving them a chance for some conversations and decision-making. Beren and Emeldir will discuss the death of Barahir while his hand is tended. Lúthien and Andreth will also be discussing death, in the context of Lúthien's relationship with mortal Beren. The Quest did not succeed (well, not fully), but Beren and Lúthien will still be heading to Doriath.
Then, at the end of episode 13, there would be a scene of Emeldir saying farewell to Andreth's grave while leading the remaining Dorthonion refugees to Dor-lómin. At this point, Narsil is with Emeldir and is thus also headed to Dor-lómin. [Getting Narsil out of Dor-lómin without having it end up in the Hill of Slain is now a problem for future seasons.] So, naturally, we will want to set up this ending in the Episode 11 scenes.
Also, Húrin and Huor's time in Gondolin now overlaps with Beren and Lúthien's visit to Brethil, so we are not meeting them in this season, but saving them until next season.
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Here's the new setup. As you can see, Episode 12 now has some breathing room for additional side plots, so we'll no doubt be showing some of Carcaroth's rampage and how that affects other places. And based on what has to happen in Episode 13, there is definitely no room for Dior this season. It may be possible to show that Lúthien is pregnant in a final shot at Tol Galen, but even that is considered optional at this point.