The lessons learned from FFXI should shape this game.

I can look at how they've turned their backs on the Auction House and think to myself, this is not something they should be dismissing, but building upon. On the other hand, the slow pace of FFXI's level progression and its harsh death penalties should be viewed as an area they should reject, and I believe they've done this nicely.

For FFXIV, I would say no to a FFXI clone, but yes to learning what worked in FFXI and what didn't.