Background video included The background video is included in this design. If you rather use an image instead of the video then you only have to remove the video from the header section (explained in the documentation).
Custom footer You can place any Divi module in the Footer.
Opt-in page If you want a bigger email list then this opt-in page is what you need. You can use it for a free ebook, free report, webinar, etc.
Thank you page These pages are most of the time overlooked but they are very important for that extra engagement with your visitors. For the opt-in page I have created a thank you page, you can for example place here a Facebook like button for that extra engagement.