Question regarding Heroic Raiding on the MoP server Frostwolf

Dear reader,

I have a question regarding the status of Heroic mode Raiding on the Frostwolf server, whether it is already available and if so whether there are many (or any) guilds who are doing Heroic mode Raiding. If it is not available yet whether there is any estimated times of availability or whether it is being worked on at all.

Thank you.

Hello!
The only instance that has Heroic mode at the moment is Mogu'Shan Vaults, though we are expecting Throne of Thunder to get couple of bosses on Heroic difficulty very soon.

Cheers.