Some people, including me, were confused last time due to the poor translation of the interview with Shinji Hashimoto and did not know what Hashimoto mean when he said "Fabula Nova Crystallis will last 10 years". Lucky for us IGN translated the entire interview Dream Nintendo has conducted and cleared it up:
"Although speaking with a Nintendo magazine, Hashimoto brought up Final Fantasy XIII as a comparison for Square Enix's decision to expand upon the FFVII storyline through the Compilation project years after the game's original release. "Different from something like VII, which we expanded upon afterwards, with Fabula Nova Crystallis FFXIII, we've thought about an expansive world setting from the start. Under the idea of wanting everyone to be sucked into the world for 10 years, we're preparing a number of categories." He likened this approach to films like Star Wars, Harry Potter and Lord of the Rings."
He also said that Square Enix is working on unannounced titles behind the scenes and they will be announced in the upcoming events (SE Party, TGS, E3 2007).
@ Article at
http://ps3.ign.com/articles/782/782629p1.html
via Forever Fantasy