After the release of Shrek Forever After, there will be no more Shrek movies. DreamWorks Animation scrapped plans to make a Shrek 5 and even marketed Shrek Forever Afteras Shrek: The Final Chapter to emphasize that it will be the last Shrek movie.
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nobody knows. I heard there is going to be a shrek 6 called "shrek vs donkey, battle of the swamp"
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There are actually plans for a Shrek 4 and a Shrek 5.
Shrek 4 is titled "Shrek 4ever After" and is scheduled for release May 21st, 2010.
Shrek 5 is supposed to be the final film in the series and is tentatively scheduled for release in 2013.