Probably around 250,000 or so by the end of 2008.
If you look at Blue Dragon, it was responsible for somewhere in the area of 150,000 consoles - if you look at it right now, 20% of all X360s in Japan are selling with a copy of Blue Dragon. This is very, very important, as it shows that *probably* around 50,000 or more consoles were sold this year due to Blue Dragon.
IMO, I think Lost Odyssey will move around 50-75% more consoles, by itself. Fortunately, the X360 also has DMC, DW6, and various other games that are multi-port that'll help the X360 more. But just Blue Dragon to LO, I'd say around 250k or more. However, it'll take till mid-June next year to see that increase die down admist other games.
Back from the dead, I'm afraid.