They're not too spoilerish. If you know what the plot is about, you'll go, hm, not learning anything more. If you don't know anything, you won't care as a shot of Sheppard in a nice suit. Woof! ;) *cough* Anyway, glommed off a nice fan's post off GW.
no subject
My guess, especially given the ep title, is that John's family wasn't especially thrilled about him being in the military, and wearing his dress blues would seem like he was rubbing it in their faces.
Does Outlook directly follow Quarantine?
Outcast, and no. After Quarantine is Harmony, then Outcast.