Hi,
Are you asking if the UW Assessments can be studied from like their regular qbank? If so, the answer is yes. The questions are different from the qbank (according to the UW website) and they have answers and explanations that you can study and review. The only thing is that you have to do the 4 blocks in order, and there is only timed mode. You must complete all 4 blocks first, get the 3-digit score, and then you can go back and review the answers, which you cannot do with the NBMEs.
If you do both assessments, that's like having 8 additional blocks of questions to study from.