Just Published: Theme Park Insider: 2016 Year in Review
The 3rd & 4th will probably be a lot less crowded than the 27th (that week was busy), but you still may run into some crowds.
Schools start up again on the 7th & there may still be some holdovers from all the Rose Bowl / Rose parade tourist for this week.
Monday the 7th is actually when things get back to normal, even slow. (the park hours change I think)
Walt Disney World
Tokyo Disney Resort