So wondering what happens to trip benefits if you use the card to pay/guarantee, but then cancel the card by the time of the item?

situation is this: I've had the Chase CSR almost as long as it's been around, and the increased annual fee, without real solid additional (and permanent) benefits, I'm thinking of canceling this card. Also, not Chase's fault, but unhappy about the loss of Plaza Premium lounges from PP....much of my travel (in a normal year) is to Canada...mostly YYZ, and to a lesser extent YVR, and with those lounges now not included, that'll cost me probably about 40%-50% of my lounge visits in a normal year. Really thinking about the Amex Plat, which while more expensive now, has a whole new set of benefits that will basically offset the fee for me (like my ability to coninue to use Plaza Premium lounges - though yes, some downgrades compared to CSR, like no PP dining credit, more inflexible airline credit, no lounge guests at Centurion soon, etc...)

So right now, I've got a trip booked for November - air tickets partially paid with CSR, and a hotel reservation guaranteed with the card - and there are potentially additional pre-paid items to come, which I may or may not book with this card. However, my annual fee is due in October, and just not sure I want to renew. If I don't renew, do I assume the trip benefits won't apply, if, for example, I need to cancel last minute for a covered reason (most likely possibility is one of the kids gets sick), or get delayed enroute?

My fee hits in Oct, so there's no way to keep the card for a bit extra, and have the fee refunded (as I understand it).