DMU does overfill by quite a bit which usually allows acceptances to happen well into the early months of "Spring". I got in (along with another classmate) in late January.
You're evaluated independently, not in the context of the other interviewees, so if you nail the interview, I'd say you have a good shot no matter when you interview (again, assuming the class isn't full by the time you do interview, something they will probably tell you especially if you ask). What do I mean? Some schools rank each interview group and accept/hold/reject accordingly, kinda like a curved exam. Not here. Assuming the class is not full, you'll have as much of a chance in January as you would now.
With all that said, it is rolling admissions and if you wanna avoid the risk of interviewing for a class that's filled, earlier is better. If you want a stronger source, admissions office is full of nice people who will probably be happy to answer any preliminary questions you may have. After all, you gotta contact them anyway about possibly rescheduling, right?
At any rate, congrats and good luck!