When you are in Revit, and go to Manage Cloud Models > Projects > Project X > Any Model > Actions > View Versions, we should be able to pull any version down of a model that is shown there. If there is a way to recover it and make it the current, than this should be doable. 
Charles Berteaux Iv
BIM360/Revit Guru
Autodesk Expert Elite
Autodesk Certified Professional
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