Blizzard has announced that it will be offering free character transfers from high population servers following complaints over long queue times.
“If the size of a realm’s population results in login queues and decreased performance, we conduct an evaluation to determine whether dispersing some of the population to other realms would represent the best means for resolving these issues. If so, we offer Free Character Migrations,” the developer said.
The move is only a one-way ticket if you decide to make the jump, so bare that in mind before deciding. As well as this, players are unable to choose a destination as all servers have pre-determined transfer path.