For the content manager I would like to see the following option added:

It would be nice that there will be a checkbox by each page to select that you would like to publish the content to that page. And of course on top there will be a check box "select all".

The top of the page will have also the update/cancel buttons, column, order, publish dates

Also I think there should be a feature in the "edit content page" you should have the option to choice the content what is already there, like how you publish content. A dropdown with all the available content and you then will choice to which column you would like to publish it. (handy for advertising purposes)

Another feature would be nice that you can set up a sort of "masterpage" for regular content pages. So that certain pane will be automatically filled with preset content. Again easier for advertising purposes. I know I could do that in the theme, but I think for people who are not that good in modifing the layouts it would be a great asset.