I am thinking about doing similar to orionjs, but in react using https://github.com/vazco/uniforms/ or similar.
Idea is to provide a fast way for basic CRUD-actions on Collections.
I think a content management Framework on meteor would be awesome to add content-management-functionalities to webapps.
Whether to use meteor or a cms for your project depends on what you want to achieve. If its a typical cms-page with a lot of content with a lot of pages and typical authoring-processes like publish and so on, then you should use one of the well-known cms (drupal, magnolia, wordpress maybe, …).