Yoshida mentions personal airships in this translated post by Bayhone:

Quote Originally Posted by Yoshi P
2.0 and beyond
I spoke a little bit about housing in the 2nd edition of the LIVE producer letter. I personally came up with the basic design for housing. (We have separate staff working on the details, and I feel bad for them that I was so ambitious with my plans)

I decided to implement a garden by any means necessary so that we can add content for Disciples of the Land and Hand.

It is also possible for players to decorate the exterior of buildings using custom architectural items created by Disciples of the Hand using construction material gathered by Disciples of the Land. There are roofs and other architectural items that can be purchased with gil, but custom items will only be attained through Disciples of the Hand and Land.

We also plan on implementing gardens so that players can plant gysahl greens and raise chocobo chicks.

Another thing we have planned for housing is an underground facility for building boats and airships. (This will be implemented sometime after the release of 2.0) We will release an image for housing as soon as possible, so please look forward to this patiently.