Vitality Sensor - early July - we were told it would release ASAP after E3.
Other M - mid August - confirmed a summer title in Nintendo's investor relations meeting, however we don't know if that is Japan only. Due to the recent history of the series, I expect another August launch.
Galaxy - mid october - If zelda is to release in 2010, it would be the big holiday title with galaxy coming right before. Also, they have The Last Story, and Xenoblade (spring) both coming out in 2010 at least in Japan, so this wouldn't be set to release at the same time, so this timeslot fits.
Zelda - late november - confirmed a 2010 title. Delays could push it out, but none of been announced. Nintendo also mentioned it during their investor relations meeting right after they said they wanted to mention their lineup of 2010 games. Due to the fact that this is the "bigger" game from the development standpoint it makes sense that it isn't as complete as Galaxy 2 is and hence needs that extra month to get ready.