How do I migrate my server?

I tried searching in your way, but I couldn't find any way to transfer servers.

There's no way to migrate outside of seasonal servers ending.

And for those the destination is predetermined.

I saw the message indicating the season has ended, but I couldn't find any information about transferring servers. Do I have to wait for their official announcement?

What finished is the arena season. You won't be able to transfer your characters from Onyxia to Icecrown until the server has completely finished the wotlk progression, which will be in... over a year?

What about other servers? I'm thinking of migrating from Lordaeron to ICC.

Realm transfers are not available.