Dear Receding, have you been hiding under a rock? All PvE servers are already merged. The PvP servers are merged into two clusters:
You could, like many others do, ask for ALL PvP servers to be merged.
I also wonder why almost all PvP players have gone on to TBCC, while more PvE players are staying on Era servers. The PvE cluster, is any time I look, more populated than any of the two PvP servers. It boggles my mind.