In the recent post by Yoshida regarding the implementation of a new server merger plan, he mentions future content in which we will visit* worlds from previous Final Fantasy games.
Curious about the community's thoughts on this direction, I certainly had not expected it.Also, as we look to expand FFXIV, some of our visions for the future, such as releasing content based in Worlds from previous FF titles, will require us to use names previously reserved for Worlds as names of cities and other locations instead.
*[Edit: As pointed out by a fellow forum goer, it seems more likely that "content based in" refers to content derived from previous worlds, not set within them.]