I see, I should clarify that I'm just trying to understand how many Windows Server licenses I need to purchase for these new proxy servers. I've been reading the release notes and it looks like I will at the minimum need a remote proxy at the DR site, as you wrote. If I understand correctly, my current Veeam server will also be a proxy server by default.
Our current Veeam 5 server is physical, 8 core, 6GB RAM, Server 2008 R2, Fiber Channel for direct connection to our SAN. We currently have no proxies. It's a small environment with about 20 servers that we replicate, with a 10Mbit WAN link to the DR.
So, one virtual proxy server on our remote ESX host should be sufficient I hope. I'm going to go further and download the manual and give it a thorough read. I just needed this answer fairly quickly. Thank you for your reply!