I would say you stand a chance this cycle, good school list and extracurriculars. Yes, if it’s clear later in the cycle that you won’t get acceptance this year then I’d suggest a DAT retake. For the 2021 cycle, you would have a lot of time to study for it, which would be good. You’ll also want to do well in your masters program, getting as close to 4.0 as possible, to prove that you can handle the rigor of a full schedule of science classes in dental school.