I haven't been on Fantasy, but I think things are the same as on Magic/Wonder as far as dining rotations. Somebody please jump in and correct me please!
When you arrive on board you have tickets in your cabin that list when you dine at each restaurant. There are 3 restaurants in the rotation so with 7 nights you go 2-3x to each restaurant. After checking in and boarding there is a window of time when you have opportunities to arrange for a variety of things... Spa, check kids into Oceaneers Club/Lab, reservations for adult dining (usually waitlist is all there is) ... and I think to switch early/late dining and dining rotation. The trick is that prior to boarding
DCL has painstakingly figured out who are early dining and those who are late dining and paired up cruisers to share tables. They work hard to have great table mates picked out. Our first cruise we were assigned to table of 6. We both had little girl the same age. The second cruise we were at a larger table with a family with multiple kids. It was still a good fit. Our third and fourth cruises we traveled with another family and sat with them.
If one cabin switches it can be a domino effect of who's impacted. Of course Disney figures this all out and makes things work the best they can. Last cruise we ended up at a table with 5 empty seats. Our servers expected them, so I assume the other family switched rotation or to early seating at the last minute. Or maybe they just ate at the buffet all the time
The first time in Animator's Palate they do "the show" but I'm not sure if Formal Night impacts that for the folks who will be assigned there on Sunday. We love Pirate Night and although its our anniversary, so we don't want to go to Palo/Remy that night. Im thinking Tuesday might be good for us
Lise