Will something like ffxiah ever be possible with this game?

[AlmaMalma]

Market board is probably too dynamic for a FFXIV:ARRAH site to handle. There's transactions all the time.

[Iecerint]

Market board is probably too dynamic for a FFXIV:ARRAH site to handle. There's transactions all the time.

How is this different from XI's?

[Kincard]

How is this different from XI's?

FFXI's AH would show the history of transactions that have already happened in the same format every time. I assume that's what FFXIAH scanned for its data (Which is why sometimes you wouldn't see certain transactions in XIAH's history if they were happening very quickly). It's probably harder to set up such a scan for XIV's market boards because it would need to scan what's up on the Market Boards right now.

I don't think it's impossible though, I hope if they ever plan on doing it they'll put in a "The Market Boards was scanned at x:xx time" so you have an idea of how recent the data is though.

Also as far as the question to whether they will exist or not, I think you'll probably get a more informative answer asking about that on the FFXIAH message board itself, because XIAH was never approved of by the FFXI devs.