Of course Shauna's there, can't go without shoehorning her in there. Well, she'll probably be conveniently left out of Dead Ringer despite being a phone addict. Also, calling that it ends up just like the aforementioned Geriatric Park or Last Thanksgiving with the lazy last second "happy" ending where Lisa becomes totally fine with the thing that killed a bunch of kids including Milhouse and, possibly, Bart too. Least that's my guess as to why he doesn't seem to be there in some of those promos. Though considering it'd be five minutes or less then I guess there's an excuse for being rushed if that's what happens.
Still, kind of interesting to see a plot about Lisa seemingly embracing her weight? From a certain point they have always emphasized that Lisa's kind of fat whenever she sits down. Even those THOHXXXII promos show that. Also being partly a Patty and Selma episode by the looks of it is pretty nice too.