What will be discussed during the coaching session?
This is entirely up to you.  Over the one-hour video chat session, you will be face-to-face with the coach and can discuss anything related to your training delivery and design. For example, you can discuss presentation skills, handling questions, understanding learning styles, how to keep delegates engaged and so on. This can be for instructor-led training, online training, live virtual and the like.
At the end of a session you will be given assignments and actions to help you practice and address various training issues. These can then be discussed in the next session.