Open jump menu selection in new window
The only way I've found to do this so far is to alter the ctools jumpMenu behaviour with the following JS. This is probably a lot more code than I need, but it seems to do the job. Better answers are appreciated. 

JS

// place this outside your .ready() function
Drupal.behaviors.CToolsJumpMenu = {
   attach: function(context) {
     $('.ctools-jump-menu-hide:not(.ctools-jump-menu-processed)')
       .addClass('ctools-jump-menu-processed')
       .hide();

     $('.ctools-jump-menu-change:not(.ctools-jump-menu-processed)')
       .addClass('ctools-jump-menu-processed')
       .change(function() {
         var loc = $(this).val();
         if (loc) {
           location.href = loc;
         }
         return false;
       });

     $('.ctools-jump-menu-button:not(.ctools-jump-menu-processed)')
       .addClass('ctools-jump-menu-processed')
       .click(function() {
         // Instead of submitting the form, just perform the redirect.

         // Find our sibling value.
         var $select = $(this).parents('form').find('.ctools-jump-menu-select');
         var loc = $select.val();
         if (loc) {
          // console.log(loc.slice(loc.indexOf('::') +2) );
           // location.href = loc.slice(loc.indexOf('::') +2);
           window.open(loc));
         }
         return false;
       });
   }
 }


Source