MTV to 'Jersey Shore' Cast: Arrivederci For Good!

Sources connected with "Jersey Shore" confirm with TMZ ... MTV will say goodbye for good to the current cast when they wrap Season 5.

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Although some big wigs on the show denied it last week, we're told MTV wants a fresh cast of characters after they wrap Season 5 -- which begins shooting in New Jersey Monday.

Here's the thing.  MTV gets the best of both worlds.  They can keep the "Jersey Shore" machine going by growing a new crop of much cheaper stars.  And, as for the break-outs in the original cast -- including The Situation, Snooki, JWOWW and Pauly D ... the network has already signed them to spinoffs.