I don't see Zelda coming out in 2010 mainly because of industry logic, they probably could have it done and dusted by the end of the year but instead they may want to hit 2011 as tbh Nintendo have their backs covered this year with the Wii's line up, a lot of the competitions big hitters are out this year but they have a good line up to deal with it. They can aim for 2011 with Zelda and have what will no doubt be a GOTY contender in a time where it's possible most of the big titles from other consoles have passed so they can have maximum impact and extra time to polish the game up, Zelda along with DQX in 2011 will bring untold amount of success.