Come play on Wutai and join Diplomats. Things are being changed at a steady pace and the game is getting its first big content patch of sorts in Mid June, and some battle mechanic changes are happening as well. They haven't said what exactly but they said the first of many will be coming with that patch. Arcell answered your questions well.

My game name is the same as on here, here is our linkshell website, http://dip-set.enjin.com/
Wutai is just as populated as Mysidia that much I am certain of, there are many good linkshells to join including ours. We are always looking for new blood. Better to start playing now so when the R30 dungeon comes out in about a month you can start doing that content. I will personally help you out if you message me.