Odoo is a commercial application with many features (one of them is a Website builder which is not exactly a CMS). Also, they already provide a Template Editor/Creator, Customization services (for custom templates) and other services. I mean that there could be a conflict of interests, in my opinion, as they offer this type of services already.
I believe that RocketTheme focuses on providing Templates and Themes for Open-Source applications.
Either way, i believe that the Core team will take this possibility into consideration and contact the company directly if there is a possibility of a partnership.