The touring plans use a variety of data to create a model that predicts wait times. The more reliable data that can be input into the model, the better the predictions.
Unfortunately, there really hasn’t been a year like this before, so the data might be lacking or limited and the predictions may not be as reliable as in the past. For example, is there going to be a lot of pent-up demand from the past year causing extra crowds? We have nothing to compare 2020 to. Are people still waiting and delaying a 2021 trip to 2022 in the hopes that things will be “fully back to normal” by then? There’s no way to tell. And how does the 50th anniversary come into play? We can look at data from other milestone anniversaries but 50 seems likely to be a bigger milestone than 45 or 40.
I am a huge geek and I love the science behind the touring plans. But even as a fan, I personally would not put a huge amount of stock in touring plans for the next year or two since they just don’t have the data to cover all of the new variables from COVID. Maybe wait until the day before your trip and generate the touring plan again, at least that way you’ll have more recent data included in the prediction model.