The scores are never expired (you can't use them after certain time, but they are kept in records) and they will be sent out together with new scores.
And there is a new rule that you can't take DAT more than 3 times. If you want to take more, you need to get permission from ADA. Thus, this upcoming take may be the last one for ya.
But, I'm not sure about your case since you took tests before the new rule was established.