I'd prefer a brand new world with it's own lore and history. Sure, I'd expect nods and easter eggs referencing 14 and other popular FF games, but I'd want to have a totally different setting than Eorzea.

My personal preference would be for a nice high fantasy setup a la D&D. No computers, no programs, none of the Magitek (sp?) we have now. The most advanced stuff is built by artificers and is approximately on the level of your average Steampunk society when it's just starting out. So the super wealthy might have some interesting home and personal gadgets, or a successful merchant might invest in those newfangled 'airship' things to carry his/her goods, but that's about it at most.

And honestly, I'd like to see a break from the races of 11 and 14 too. Sure, humans and elves tend to be a staple in any fantasy setting, but let's have some fun with the others! A fully developed Ronso/Viera/Moogle race would be fun to have out of the gate. And maybe some totally new ideas as well. Maybe some equivalent of Hobbits or Dwarves (the Tolkien variety) instead of Lalas. We could also have fun with some totally non-human ideas. Maybe an actual dragon race a la fairy or mercury dragons from D&D. It would be interesting to play a race that isn't a bipedal humanoid but can still interact with them and wreck things on the battlefield.

That's what I'd like to see. Not everything has to tie to existing lore, or be a tribute to another game. I would love to have the devs crack open the various D&D bestiaries and go to town with something new.