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I've recently been asked by a client if I can foresee any issues with reverting back to their original domain name. With the original domain name they had a pretty decent DA for their sector which they have now lost. Although I do appreciate that over time this might come back, the CEO is very keen to switch back to the old domain. They do currently have 301 redirects from the old domain to the new and have implemented rel canonical. As yet they have not notified Google of the change of address using Webmaster Tools. Can anyone forsee any issues with returning back to the old domain name? They have only been using the new domain name for a couple of months which currently has a DA for 1.