does the nclex format change in Janurary?

The 2007 Test Plan won't go into effect until April. Even then, the NCLEX will still be given using CAT methodology and will include the same types of alternate-format questions (check all that apply, hot spot, drag and drop, etc).

https://www.ncsbn.org/RN_Test_Plan_2007_Web.pdf

That's true there will be a new test plan, next year, but of the methodology I have not a clue