After Marshall and Lily almost get hit by a taxi, Lily responds with, "Death is all around us." Marshall said the same thing in S7: E9 "Diaster Averted" after learning of the end of his health insurance and getting a paper cut.
The suit that Marshall is wearing during the competition is the matching jacket to the pants talked about in the episode "The Magician's Code: Part 1" (7.23), as Robin and Ted recount for Lily the time Marshall had "unlucky" pants.
Items on Lily and Marshall's "Who Wants to Be a Godparent" wheel: "Diaper Daily Double", "Birds and Bees", "Tooth Fairy Santa Bigfoot", "Bedtime Story", "Learning to Drive", "Discipline", "Potty Training", and "Our Demise".
Victoria makes comments about her dad hating Ted b/c he ruined her wedding. Victoria was leaving for Ted but Klaus was also running away from the wedding so Victoria could have easily played it off on Klaus ruining the wedding
In S3E2 "We're Not From Here," Lily & Marshall plan for their deaths after getting married, with little drama. By this time they act like they've never considered making a will before.