A couple of interesting revelations from Square Enix's Yoichi Wada at their shareholders' meeting a couple days ago.
First, his earlier quote about DQ remakes coming out before DQIX was "a mistake". Apparently he got into a bit of hot water about making the comment because there are no DQ remakes planned (for now).
Second, with regards to FFXIII on Xbox 360 or another platform, "although we are proceeding with FFXIII for the PS3, that doesn't mean we won't be able to to use it on other (platforms)."