Adding Server 2012 system to Server 2008 Environment.

I have a network that has a 3 servers:
     1. Server 2008 R2 Standard with roles: AD, DHCP, DNS, File & Print Services
     2. Server 2008 R2 Standard running Exchange 2010
     3. Server 2003 R2 Standard with role: Terminal Server

I am looking to replace system 3 (Terminal Server) with a new system Running Remote Desktop Services. Will there be a problem adding a new system running Server 2012 to the network (domain) or should I downgrade it to Server 2008?
GreenWingRiderAsked:
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arnoldCommented:
You should downgrade unless you have software assurance in the RDP cals upgrade from 2003/2008 to 2012.
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GreenWingRiderAuthor Commented:
Do you mean if I have software assurance THEN the RDP cals will upgrade?

I guess my bigger question is, will a Server 2012 machine work ok in a Domain controlled by a Server 2008 machine?
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arnoldCommented:
If you have software assurance on the cals you can get them upgraded, depending on which cals you have, 2008 with assurance that is active, or 2003 with ashurance that expired long ago.

The only limitation on the 2012 deals with becoming a DC (would require running the adprep) any level AD can have any OS system as a member, only DC is where considerations come into play.

Since your goal is for RDS, check the RDP licensing.
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GreenWingRiderAuthor Commented:
So if I leave  system 1 (Server 2008 R2) as the DC there will be no problem adding the Server 2012 machine to run Terminal Services (or RDS)?
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arnoldCommented:
That is correct , your. 2012 will likely need to serve as the RDS licensing server.
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GreenWingRiderAuthor Commented:
Thanks.
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