I tried it in a demo template from Joomlart (goto
www.joomlart.com/demo/#joomla25-templates.joomlart.com/ja_mixmaz, click on the +Demo Builder tab on the left and fill in the form to make one yourself) and... it works!
I just changed the creation date of a few K2 Items to future dates and reloaded the website.
NB!
Set the site in Developer Mode (Template Manager > choose the current template > Select 'Enable Development Mode') or delete the Joomla and/or browser cache after making the changes, otherwise you will not see them B)
