Expansion based on Pre-Calamity

[Enkidoh]

The thing is that people asking for such an event/expansion in order to 'experience 1.0's story' fail to realize is that 1.0's story has been effectively abandoned by SE, at least, the original story anyway (the original starting city stories and the Path of the Twelve arc). This is because the original storyline was cannibalized for ideas and concepts that ARR's story was developed from, meaning it's just more of the same (the development team stated a while ago that any concepts or story ideas that were mentioned in 1.0 that don't appear in ARR have been effectively abandoned, meaning 1.0's is now retconned in a George Lucas-esque, "unless we say it is canon to ARR everything mentioned in 1.0's story is now abandoned", sort of way).

Thus this is pretty conclusive that even if a hypothetical FFXIV equivalent expansion to FFXI's Wings of the Goddess was later implemented, what we would see would actually be completely different to the actual story 1.0 players experienced, due to the previously mentioned retconning.

Remember, ARR is not so much a sequel story wise as a reboot in every way, including story. It means 1.0's story is gone forever I'm afraid.