Yep, pretty much the way it went last year, and the year before... When you do call Monday, depending on how early in the day, don't expect the CM to sound all that sure about menus and pricing even then. Last year when I asked questions, I generally got answers but there were a lot of phrases thrown in like, "subject to change", "this is what they've told us so far", "this menu seems incomplete, maybe they haven't finalized it yet", and "really, I hadn't heard that, let me check."
In all likelihood, there will be a meal at Storyteller's. That's what we've done the last couple of years. You can order a traditional Thanksgiving meal off the menu, or get the buffet. We always get the buffet. No characters.
There is also usually a special menu at the PCH grill. I think it was a buffet too, and it sounded kind of interesting.
Goofy's Kitchen will be serving, but I'm not sure it's particularly special. They always have a buffet, so I think they just add seasonal selections to it. At least that's what they did the time we ate there for Easter. There are characters for that.
There is usually a meal at the
Disneyland Hotel ball room. That is really pricey, and we've never considered it for that reason, but I do believe it's buffet, considered to be a cut above the other buffet foods, and features characters.
The DtD restaurants will also offer Thanksgiving menus, and you will be able to find turkey dinners at many restaurants inside the parks, even the ones that don't normally serve that kind of food.