It would be really helpful for Workflow emails to allow for a specific set of email addresses instead of sending to the records that are found through the workflow query. i.e. I setup a workflow that triggers an email anytime a gift comes in to a specific fund and emails the director of that specific fund/program to know the gift has come in. So in the email designer I would setup the abc fund email with the people to be notified as the recipients and when the workflow triggers, they get the email.