The long answer is that it can take some doing to recover it, which can take some time, so if there is any way you can recreate it in an hour, or clone a similar email, then that would be the quickest way to do it. We have a tool that can do it, but it can cause issue, so only the engineers can run it, and like I said, that can take some time.
@John Clark , Is this true? Support chat says no. Also if this works through RCE, then that means the email data is available right? Recover Deleted email
We should be able to restore the email asset, at least, there but I can't say for certain if that will restore the analytics data as well. What I would recommend is opening a case with support and providing the details about the email you want to have restored. The engineer that gets the case can dig in and see what we can do.