I customized my headers in Ideas List to display votes and name of the submitter but when I get there by following a link through the Overview (say I click on the new features needing review) they revert to some default state.
Any pre-defined list from the overview screen should remember my last-used settings.
When you use one of the links from the Ideas -> Overview screen to go to a list of ideas Aha! needs to ensure that you are seeing the ideas with the filters and visible columns appropriate for the view you requested. For example it would be no good if you clicked to see the list of popular ideas, but the votes columns was not displayed.
If you want customized views then you can save views on the Ideas -> List screen that are customized for your use-cases.