Just because they've announced the price of the bundle at the moment, doesn't mean they can't adjust it later. It wouldn't make sense to announce a price cut a few months in advance.
I remember last year when sony was selling the ps3 for 30,000 yen still and the ps3 Tales of Xillia special edition console was announced in early/mid 2011 for ~38,000 yen. Before the launch of that game/special edition console, so had their 5,000 yen price cut on the PS3. They ended up dropping the price of the special edition console by 5,000 yen as well even though the price had been announced previously.
starcraft: "I and every PS3 fanboy alive are waiting for Versus more than FFXIII.
Me since the games were revealed, the fanboys since E3." 
Skeeuk: "playstation 3 is the ultimate in gaming acceleration"
