Alvin and the Chipmunks 3 Movie

The second opus of the Alvin and the Chipmunks movie franchise isn't out yet, but I bet 20th Century Fox is already planning Alvin and the Chipmunks 3. And it does make financial sense: the average production cost is at $60 million, the first film generated more than $359 million gross revenue, and the second will most likely bring in as much. This franchise is a real cash cow for the studios!

Why such a success? Well The Alvin and the Chipmunks movie series is just the ideal Christmas franchise: those squirrels are so cute, and who could resist to this trio of singing critters? And the way they remix famous music hits is so awesome, that people yearn for the soundtracks.

So we can be sure that there is a new Alvin and the Chipmunks movie sequel ahead of us!

The first film introduced us to the singing trio, and then the the Chipettes joined the party in the second movie. But what could be the plot of Alvin and the Chipmunks 3? Any suggestion for the screenwriters? Do you prefer a brand new story or should they dig further into the source material?
:)