1) Make New Quizzes shareable between teachers. This is a huge drawback for teachers collaborating on courses and drives my colleagues and I to continue using Classic Quizzes instead. Currently, the quiz questions disappear when shared between teachers.
2) Enable New Quizzes to show quiz results by class/ period in a teacher and student-friendly manner. Currently, New Quizzes pulls up all result data for the question, rather than for individual classes, or sections. Seeing data by class rather than as a whole (for 100+ students) is really helpful to target instruction to the needs of individual classes. I use this feature daily with Classic Quizzes to review the previous day's exit tickets (i.e. the main takeaways from the previous day's lesson) whole-group in class. Displaying the results for each class the next day allows me to clarify misconceptions, reteach key content, and/or praise students for a job well-done.