There is no built-in functionality that would stop the workflow and continue on a certain date. The work around that I can recommend is add a placeholder manual activity where you want to stop the workflow, with no owner for that activity. Then use the ‘Next Step Macro’ to advance the main workflow from this placeholder manual activity to the next, real activity.
I hope this helps. <?xml:namespace prefix = "o" ns = "urn:schemas-microsoft-com:office:office" />