Happy Rudolph Day OP!! (A tradition by many Christmas preppers and planners and nuts to have some Christmas fun and do some Christmas Planning every 25th of the month, so it is less stressful come the Christmas season and we can enjoy it more!).
Yes, I would think ahead, lots.
I am rethinking Christmas again in this house (although we may well have to travel again this year, having not done so last year) - but teen DD was totally not up for a traditional day so threw many, many strops on the day (ASD and teen hormones combined with Covid restrictions).
I am thinking proper seafood feast - lobster, crab, prawns, scallops......
PLenty of good wine (maybe even bubbles) that gets opened early.
Possibly something slightly complex for breakfast like cinnamon rolls or something like that which needs overnight rising/proving before a morning bake, with good fresh coffee.
A good cheeseboard and port to start scoffing mid afternoon.
What you and DH need to think about though is what YOU both like, what is a treat for you both, and what kind of day do you both want? Something with a long energetic walk and lovely festive themed picnic? Morning swim followed by a warming hot port/hot chocolate? No cooking, lots of cooking, or something in between with a little bit of gently moving some oven trays around? Middle of the day meal with light breakfast and evening tempting nibbles, or later meal with a more substantial breakfast but no lunch, or a whole day of grazing on nice things?
This is why days like Rudolph Day are so important - as thinking about all these things takes time, and then there is the actual meal/menu planning once you've figured out what kind of day you want, and then organising where to get everything (is it all from a local shop, or do you need to order things with a good butcher/fishmonger, artisan producers etc?) in plenty of time.
Enjoy!! 