Yes
But it depends on the point of view....
If you think about the mayor franchises of Nintendo, they will never get another release for the DS. Instead, they will move on to the new 3DS. Nobody can ague with that. The last DS Zelda game will be Spirits Tracks, the last DS Pokemon game will be B&W and his "uptaded" version (Pokemon Grey?
) (we are talking about the RPG games), the last DS Metroid game will be Prime Hunters (the pinball game doesn’t count
), and it goes on and on.
But, if you think about 3rd party producers... they will make at least a couple of games before the complete death of the DS. So...you could say that it have a little more lifespan. 1 year maybe?
Anyway, I think that this handheld generation is reaching the end, and that is the way it should be.
Asking about the Wii is another thing.... I don’t know WTF is going to happen. Sony and Microsoft next "step" is the already know (and copied) motion gameplay add to his current consoles (PS3 and 360). But.... what about the Wii? That could be only answered in a few days.
E3... I´m waiting for you!!!!!