No one knows about this year...but if I recall right, last year, TTX didn't have expected values for "item" donation entries until sometime (middle of?) January.
IF you are actually asking about importing the entries you might have in the ItsDeductible program...those might be implemented in January also...but could happen any time now. Activating that sooner than January can cause other problems, because folks are still making donations thru the end of the year.