Can Nintendo hold the Wii By them selves?

[BornFirst.]

What i mean is, can Nintendo keep the Wii succesfull without any third Party help. 

I am not saying Third Party support won't come, but it seems like with the exception of a few they are still a little slow in the uptake. Plus with the whole fact that they are afraid of not selling, it seems only Nintendo can do anyhing for the Wii right now. Plus its not Third party games that are selling the Wii, its purely Nintendo, and if they keep bringing out inovations like wii sports and wii fit, they will always have the non-traditonal gamers(peopel like to call them casuals, i personaly hate that name) in the bag and keep selling out. Despite the fact that a lot of people think casuals will get bored i think the oposite, non-traditonal gamers are limited to the amount of people in the world imo, and as long as Nintedno can keep a pealing to them there is  no problem. And Nintendo games are enough for some traditional gamers to keep buying games for the system. 

They did it for the DS and people were saying that it was a casual system, eventually third party support came like a tidal wave, now the DS is pure gaming heaven for both traditinal and non-traditional fokes. 

 

Wot do you guys think?