I also think the timing of XIII was really unfortunate.
At the time we had the elders scrolls and mass effect games getting all the attention and media praise and thusly we focused on open worlds and choices, features that were secondary or of minor importance in previous FF and turned them into a huge deal.
On the other hand, while everyone was waiting for the next big RPG, Square took the FF X recipe a little too far and made something that was essentially an action-rpg blending (as they said themselves they didn't want to be confined within the rpg genre).
For FF XV I predict Square going the road of XII, instead of X's this time.







