I was a bit disappointed all the airship and ferry travel was reduced to a cut-scene(if even that) so I propose Public transport as a means to get people together in small groups for a couple minutes away from the regular gameplay.
Instead of everyone jumping on a chocobo porter for all locations maybe have a couple locations only available by chocobo cart etc. and bundle half a dozen people together. Put some time in to check the numbers etc. and make sure it is still worth doing rather then just teleporting and all the alternatives.
I know some people want to just run through as quick as possible but I think this game needs to put a bit more into building the community then it does at the moment