I just released 1.7 of my featured video plugin. This brings two big new features to make the plugin more flexible and cut load times: Instead of replacing featured images with their corresponding featured video directly you can now make them clickable to either open a lightbox (using jQuery DOM Window) or replace and autoplay the image just then. Both of these features rely on AJAX and therefore lower the initial load time of the page. This is especially interesting with blog index pages where plenty of posts + videos need to be loaded.
Next releases will focus on enhancing Shortcodes and supporting more video providers. Furthermore I will add a overlay for featured images to indicate that they link to featured videos. If you have any requests leave a note in the comments or in the support forum.