http://www.vgchartz.com/swlaunch.php?reg1=Japan&game1=Final+Fantasy+X-2+-+PS2[760]®2=Japan&game2=Final+Fantasy+XIII+-+PS3[7727]®3=All&game3=&weeks=5
FF13 tracking almost identicle but showing possibly better legs than FF X-2 in Japan. FF X-2 went on to sell 2.4+ Million LTD, id say thats pretty good considering early famistu LT estimates and predictions.