You can check online about AP rates at the resorts. Universal does not release AP rates very far ahead, probably sometime this summer they will release them. So keep your reservation, and if AP rates come out you can book them then cancel your initial one. When changing from regualr to AP rates I have not been able to apply my deposit to the new booking, had to pay a new deposit then wait a week for the refund to come through. you may not be able to get a 2 night AP rate over Thanksgiving.
Link to check AP rates (just put in your dates) -
https://res.windsurfercrs.com/ibe/d...hildren=0&promo=aph&iata=&group=&hotels=&ada=
Seasonal passholders are blocked out of Universal Studios on concert days, and there will likely be Manheim Steamroller concerts on Saturday and Sunday over Thanksgiving. I would advise you get the 3 day tickets on
UT, if the AP rates come out and are low enough to warrant it, you can upgrade one to a Power AP once you arrive, to be able to do both parks if you are there on the weekend. If you don't need Sat/Sun, a seasonal pass would do.