RE: New Theming System.
What should the base theme in Drupal be set to in order to future proof for responsive themes in CiviCRM? Is it safe to implement the boostrap theme for Drupal? I have a lot of customizations that I need to do with it and I don't want to spend the time working on it, only to find that I have to do it all again when CiviCRM has bootstrap integrated.
What does the timeline look like for the new theming system? Should I just hold off for now on and wait for it to be released?