Call Forwarding Pre-Announcement
Would be so helpful if there was a pre-message that could be recorded before it forwards to the person. For example, I go on vacation, forward my calls to Deana. If the caller calls my line it says, "I am out of the office, you are being forwarded to Deana who is covering my lines until my return June 30th", then it connects the forward and goes to Deana.

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Patrick commented
Heather has an amazing idea here. I actually have a critical need for this in my company. Our clients call their local office for any of their needs. However, if, for whatever reason (nobody's available, high call volume, etc.) the client is on hold for too long (in our case, 1 minute), we forward them to our National Call Center where the client needs can be addressed.
My clients need to know that they are being forwarded to the National Call Center and are no longer going to be talking with their local representative.
Right now, I'm handling this in a very awkward manner. I have our Call Queue set up so that if nobody answers within the 1 minute time limit (noted above) it forwards to ANOTHER call queue which plays the greeting "your call is now being forwarded to our national call center..." and immediately forwards it to the external number.
This is an OK workaround... but is an added step that really isn't necessary. We should be able to play the message that the call is being forwarded straight from the wait time management area.