Many foreign companies are currently desisting from New York Stock exchange, simply because the US laws after Sarbanes-Oxley are way too bureaucratic and strict and involve major risks. The costs and risks outweigh the chances and benefits by far - thats the only reason why so many companies are leaving the US stock market.

they dont have any left. sure they maybe try to milk the corpses of some franchises or sell em, but well, the franchises are gone, MGS will finish the mainline, silent hill will never be a hit again after all the shadyness involved in the cancelling of the last.

they will make some more cheap handheld games and ports of older games, and milk PES as long as it makes a profit.

They're getting out before the coming financial crash