Just saw this today from link.

"A new 24-person raid, of the same size of The Crystal Tower, will be added in the 3.1 update. It's not like a normal raid. You use airships and you can visit floating islands and explore them once you land. Anyone can join in, so long as you don't exceed the 24-person limit.

"We're also working on something for the Grand Companies which allows you to hire NPCs to your army, which is a new element that we think will expand your options within the game."
http://www.pcgamesn.com/final-fantas...ations-of-fans

Not sure how legit it is, assuming the article interviewed Yoshi-P himself or not, but if this is what's in the works, sounds quite exciting. The second part about the GC new feature didn't state if it'll be in 3.1 or not, so don't hold your breath.