Hi Rob,
Based on my knowledge, it should cause potential issues for the current ADFS service with Office 365.
As for further assistance and the solution about deploying a new ADFS server farm in this scenario, we have a group dedicated to dealing with this kind of question. Please post the question in the following TechNet forum. The TechNet forum engineers are more professional about it. Thanks for understanding.
http://social.technet.microsoft.com/Forums/windowsserver/en-US/home?forum=winserverDS
Thanks,
Claud