So me and my Mom were watching the preview for Episode 5(tv version(you can watch it /tv-shows/Downton-Abbey_24131/season_2/episode_4/ its towards the end, since its in the episode)).
Anyway we noticed that towards the end of the scene with Sybil and Branson ,Sybil's eyelids are going downwards and her head a bit too.
She looked a bit feverish too…
So we thought maybe she's about to faint. We assumed it was kissing him….but it may be fainting.
So a plot was born!
And the idea of Edith and Violet taking care of her and Mary, Robert and Cora in France with Matthew are because of the spoiler pictures for episode 5. ./images/downton-abbey/season-2/promotional-episode-photos/episode%202.05/
….