no there is not
It has not been announced.
First of all your question is pretty stupid cause LittleBigPlanet2 has just came out like 3 months ago but yes there will probably be a LittleBigPlanet3 coming in the future.
A computer is not human, a human is no computer. There is no "human computer." You cannot play against a human computer thus.
you can play mysim's kingdom on the computer
You can not play Wii games on your computer.
You cannot play Brawl on your computer.
iPod apps are made to play on an iPod and will not play on a computer.
On computer
as long the computer is after windows 95 it will play
canu play smurfs village on the computer
Yes, with the right drivers, you can play Xbox 360 or PS3 through your computer.