I watched last weeks episode last night, and will watch the most recent episode tonight perhaps. I always love the visual shots of the outside. The train spiraling up the mountain in near perfect symmetry is very cool IMO. Then add in the red candles being lit as some of the main characters look across the valley, it was a very powerful shot. All CGI but still a very beautiful visual.
I agree that Icy Bob is primed for a long walk outside to make his way to the SnowPiercer engine, but I'm not so sure he's entirely team W yet. He showed a bit of a softer side when he saw Josie getting similar skin grafts that he has, so I think it's possible he doesn't totally carry out whatever plan Wilford has for him.
On the Audrey/Kevin thing, I think it's all an act. Audrey is an actress, after all. They didn't show much detail in her weird therapy session with Kevin, so I think she got through to him that if they put on a good act together then they'll be able to carry out whatever plan Audrey has. They sort of hinted at it by having Audrey ask Kevin to repeat a line or two, as if she was an acting coach.
Predictions for the coming episodes:
Audrey gets shanked by either Wilford or Kevin (betraying her and siding with W).
Icy Robert marches his ass to the front of Snow Piercer, murders Ben and Javier in dramatic fashion. I'm thinking something like a stopped train, Melanie sprinting toward the engine from a distance. She and Ben notice each other and then Ben gets whacked
Layton needs muscle, I'm just not sure where it's gonna come from yet