We do have the missing Musketeer Guild in Limsa. It use to be there in v1.0 and now the Marauders Guild has taken over. Would be nice to see Musketeer/Corsair come out soon, but there is a lot of speculation about Thief. People are unsure if Thief will be the base Class and will lead into Ninja or if something like Rogue will be the base and lead into Thief and Ninja.