"Square Enix president Yoichi Wada fielded questions at a financial briefing today, and obviously Dragon Quest IX's delay was the big topic of conversation. But Final Fantasy XIII was also brought up, according to this report at ITMedia.
It appears that DQIX's delay could affect FFXIII's release. Regarding the release of the PS3 title, Wada said, "It may be affected by Dragon Quest IX's delay. We'd like to work towards (a release) within fiscal 2009."
He added, ""We've yet to finalize our plans for the next term, so I cannot say for sure if there will or will not be an effect, but Dragon Quest's release being March or July changes the premise. I can't say that there won't be an influence."
http://www.andriasang.com/e/blogs/anoop/2009/02/12/dqix_delay_could_affect_ffxiii/