right from FF tactics they could implement any of these jobs and I would be happy specially:
they have different days and terrain you are fighting enemy can be used for advantage to the party. This will add another complex srategy to the game party mechanics by making people "lure" enemy to different terrain, or make geomancer change terrains, or make tanks/pullers move enemy to terrains or elevations or days of the game/gods to be used this will make a awesome class.
This is another favorite which would make a good healer/nuker by making poison potions/blind potions/etc they can get creative with this and make alchemist crafting make special things to enhance it a bit.
They can also get real creative with this also
all these jobs are completely new to FF11 if thats what they are goign for and all will add nice fresh look to game.
P.S- Id would be hilarious they add "Holy Swordsman: Orlandu " class to the game and break it lol. Edited, Jul 24th 2011 2:15pm by KingAlkaiser