I see a lot of requests for controllers support and a simple solution would be to have people separated not on their choice of platform, which seems silly to me, but instead on their choice of input device. Everyone using a controller would be separated from everyone using a M/K set up.
This way people can use whichever on they are more comfortable with regardless of platform and it prevents issues of controller users being gimped in PVP. Since Add-ons are apparently going to be limited it makes even less sense to separate people based just on their platform of choice. What say you?