Seen HERE

"The following is an announcement for those currently playing only FINAL FANTASY XIV: A Realm Reborn. This announcement does not affect users playing FINAL FANTASY XIV: Heavensward or the all-in-one FINAL FANTASY XIV Online. "

Space required before Patch 3.2 > Space required after Patch 3.2

Windows: 20GB > 30GB
Mac: 20GB > 30GB
PlayStation®3: 12GB > 20GB
PlayStation®4: 40GB > 50GB

Likely not much of an issue for a PC user, but I wonder how many PS3/PS4 users will be caught out?

It also makes me a little excited for all the changes and additions