Digimon Ghost Game episode 35, Werewolf, is a bit over half a day from starting in Japan, and elsewhere a few hours after that, so we get a small stack of preview screenshots from the Digimon_TV Twitter.
Our discussion thread for episode 35 can be found here.
So looking at the images, first of all, Ruli seems angry with someone, but we don't know if it's the villain of the episode or one of the adults who asks her to sacrifice herself.
Two, Angoramon forcing Jellymon and Gammamon to shut up, I think both are against Ruli being sacrificed but they have to be in the presence of other humans who don't know about digimons.
Finally, we see the group with the neutral face heading somewhere, I think they are following the procession that brings Ruli.
Still no clue about the villain of the episode but I definitely think it's the Lamortmon episode.