Is it possible to move from Thornblade to Mischief? Assuming no recent transfer, adequate level, and token in hand.
I don't think those two servers are going to merge until Thornblade reaches a really low population of active players... Think Coirnav, Phinigel or Miragul as if in their current state.
Mischief is highly congested, and Thornblade is not. There is no guarantee the servers will ever merge.