I'm guessing you won't get to everything on your list. But it depends on a lot - whether you are open to park hopping....how much time you take for meals....if you hit the parks each day at rope drop...if you take advantage of EMH....how much time you take to stop and smell the roses (whether that be shopping, people watching, catching parades, sitting down and relaxing, running through the sprinklers, playing in the exhibits at Epcot)....and probably most important, just plain old luck - even with a good touring plan, a day that is busier than normal can add two hours to a day, and a day that is unusually light will make you wonder why people say you can't get it all done.
My kids at certain ages could spend hours in the Boneyard or Honey I Shrunk the Kids. At other ages, we could spend hours doing meet and greets with characters. It took three evenings to get masks done - but that included stopping for a few shows or snacks or a peek in a shop.