I am helping a friend plan a family trip to Disney World. His daughter is turning 5 on December 9, and they had planned to be there around that time so she could celebrate her birthday there. HOWEVER, Disney just announced that Rise of the Resistance will be opening on December 5. They likely wouldn't be going to Hollywood Studios at all, and certainly wouldn't be doing Star Wars stuff. But how will the crowds in the other parks be in the weeks immediately following Rise's opening? Is it worth it to shift the whole trip so there gone before the 5th? Or is that generally a low-enough time of year (YourFirstVisit has it ranked as the 2nd-best week, though this was before the Rise announcement) that the benefit of a Disney birthday celebration is worth the extra crowds?