The yell feature will start with support in Jeuno so that we can monitor the effects it has on server lag. After examining the situation for a bit (and assuming no problems arise), we'll expand the yell feature to cover area-wide communications within San d'Oria, Bastok and Windurst.

Now you'll be able to yell for parties while keeping your chocobo fed, expanding your Gobbiebag, or just listing up your bone chips on the Auction House!
This means 4 seperate yell zones right? That is a total waste of time, nobody shouts in starter cities anyway. The only way extending it to starter cities will be worthwhile is if it is 1 combined /yell for all zones.