Any ideas if they will offer free dining end of january/ beginning of february?
Historically, they've made January/February discounts available the October prior. http://www.mousesavers.com/historical-information-on-walt-disney-world-resort-discounts/ Start keeping an eye out in September. I check here (Lines) first.
it would be very unusual to see FD for that time. it was not offered last 2 years. instead a stay play and dine offer has been for that time. its a discount for the package and more of a discount the more options you have and higher level of resort. it usually comes out to be about 75% off dining for the average room.