Which is why students are given ample time, usually the entire last semester at the last year of study, to complete all the requirements and finally acquire their degree. It helps the students to grow out of their shell from their respective discipline and give them the opportunity to present all their findings of their study.
Why is this a good approach? Furthermore, have you identified likely sources of funding, or do you need any difficult-to-acquire materials?
It is not up to you as respondent to outline the defence. Knowledge of the Topic. Similarly, examiners frequently ask students what they would do differently if they were starting the same project again.
Another annoying thing with the thank-you or question slide is that you withdraw the conclusions slide from the audience. In Europe, a dissertation is only a broader research study from a post-graduate program and not the making of original research. A second delay is awkward, but try and see… Let people read and react on the slide.