FFXIII will be the highest selling PS3 title in Japan. Ever.
Having said that, I expect a significant drop from FFXII's cume, but not as bad as the skeptics are arguing. MGSIV sold rather well despite the user base. I expect 1.7-2.0 million copies of XIII to sell in Japan. Bad for a mainline Final Fantasy title, but great for a PS3 title.
Back from the dead, I'm afraid.