Well It's really quite simple to use contact form 7 instead of the theme contact form. For example, in the contact page settings you can turn off the contact form and leave on the map:
http://docs.kadencethemes.com/virtue/#contactpage
then make two columns with the built in column shortcodes you can add by clicking the columns button then in one of the columns add your contact form 7 shortcode.
Done.
I don't see adding any more to the built in contact form in the future when it's so easy to use contact form 7 and get more customizations then I care to support in a theme.
Kadence Themes