I just found out yesterday that the next episode, 1554, is a continuation, with Oscar having to cooperate with Luis in order to have the cast leave the can after a night there. I never thought they'd actually show them leaving, I figured it'd just be a given that they would leave, unseen.
I noticed in the behind the scenes footage that when they show the control room, at least one of the monitors has Gordon on the stoop of 123 Sesame Street, which I think was happening live as opposed to them watching existing footage, and I don't think he appears in episode 1553. Maybe they were recording the two episodes (or this and the previous one) on the same day. Interestingly, I saw that episode 1554 is the one with Dr. Nobel Price "inventing" an umbrella. These past two weeks the wiki has gotten episode numbers for season 12 scenes I have known about for years!
I thought about putting episodes 1553 and 1554 in the storyarcs page on Muppet Wiki, but these are part of a period where Buffy and Cody stay in Oscar's can. I should probably start a discussion at Muppet Wiki, but in the last year I have sometimes wondered if the various periods when Buffy stays over would be considered storyarcs. I'm thinking she permanently lived on Sesame Street in her first two seasons, then moved to Hawaii and visited the street for extended periods afterwards. This being a fact that I wasn't really aware of until all those season 11 and 12 program guides surfaced (I had wondered why she and her family were living/staying in Hawaii for a long time when they were Sesame Street residents). But I don't think the wiki has many guides on episodes about her coming/going.