The last time I had read anything on the topic of whether they will be introducing a fame system to FFXIV, I want to say Yoshi P. had mentioned they were thinking about it. The system for side quests and when they become available to you now is based on what level you are.
For those of you that don't know, the fame system in FFXI determined when side quests in each city would become available to you. Each city had its own fame system, and the only way to gain more fame was to do smaller sidequests and repeatable quests. I have no desire to do 250 repeatable quests that have me turning in 400 pieces of La Thiene cabbage, but at the same time, I thought the system itself was a wonderful way to view lore and make the world I was in feel more alive.
With the guilds in XIV being in different cities, I think it would be awsome if they added perks to having high fame in each city. Possibly have it so, once you have a high enough fame in Ul'dah, the Alchemy guild offers you cheap crafting materials they would not have normally. (I MISS BUYING FINE SAND FROM NPCS) The hamlets as well could each be tied to the cities they are outside of, and the quests there could affect your fame in multiple places. IS everyone happy with the side quest system now? Would you like to see this sort of system introduced?