From what has been reported recently, the heroic keys have been changed in version 2.3 to requiring only honored rep.

A lot of stuff is seeming to be changing with the new patch. The PTR info is available. PTR Patch NotesThe naming for weapon skill is changing. A blizzard run guild bank. Being able to send more than one item in mail. I'm looking forward to most of it.

Multimailing may need a CP fix, and may or may not need a wowroster fix. Guild bank will need to be implemented in CP before we can implement it in wowroster. The changed weapon skill name should work without any changes, both in CP and in roster.

Another thing that I would love in the GP is getting the usage logs from the guild bank.

Make sure you ask calvin over on his forums
I already made a post about the guildbank in 2.3