The admissions committee meets on Tuesdays to decide on the fate of applicants. They were unable to meet on Tuesday Nov 5th due to having a visiting candidate for the position of medical school Executive Dean. It is unlikely that they met on the Tuesday of Thanksgiving.
Gru commented that he interviewed around October 11th (I am guessing that it was actually the first day of RD interviews, October 9th) and had his letter dated October 25. Having a letter dated October 25th means that his application was reviewed on October 22nd.
We know some applicants from Oct 28th have not been reviewed yet because of Shen924’s post, unless Shen’s letter is in the mail right now.
Estimating that it takes two Tuesdays to review one day of interviewees, this is what I think we could possibly expect in terms of decision timeline:
Interviewed early Oct 9 = Reviewed Oct 15
Interviewed late Oct 9 = Reviewed Oct 22
Interviewed early Oct 10 = Reviewed Oct 29
-----Dean Candidate
Interviewed late Oct 10 = Reviewed Nov 12
Interviewed early Oct 11 = Reviewed Nov 19
------Thanksgivings
Interviewed late Oct 11 = Reviewed Dec 3
Interviewed early Oct 28 = Reviewed Dec 10 (Your lucky day may be today, Shen.)
Interviewed late Oct 28 = Reviewed Dec 17
-----Christmas Break
-----??News Years break?? (I am probably at least 1-2 weeks off at this point)
Interviewed early Oct 29 = Reviewed Jan 7
Interviewed late Oct 29 = Reviewed Jan 14
Interviewed early Oct 30 = Reviewed Jan 21
Interviewed late Oct 30 = Reviewed Jan 28
Interviewed early Nov 18 = Reviewed Feb 4
Interviewed late Nov 18 = Reviewed Feb 11
This seems like an impossibly slow schedule, and it would not finish reviewing applicants by KU's typical mass decision date in late March. Perhaps some interview dates have less applicants and only takes 1 Tuesday to review.