Background:  Like most institutions, our instructors use various publisher integrations. 

For example, an instructor will use "X publisher's" text and "X's/the publishers" supportive materials available by the publisher for the adopted text.  The instructor will create quizzes from the publisher's quiz banks or just move from the publisher'-created quizzes from the publisher's platform to their (the instructor's) term coded Canvas course.  

Many publishers have yet to transition their quiz content to New Quizes. 

Our institution wishes to transition completed to "New Quizes" in a few months. 

Question 1: Will our institutions' completely transitioning to New Quizes prevent the use of these external publisher created Classic quizzes if we change administrative permissions to solely use New Quizes?

Much thanks.