After 700 hundred years of doing what he was built for - collecting garbage on a dusty planet -,
Wall-E is going to discover what he was meant for !
Well we don't have that much information for now, but the cgi-animation done by Pixar seems to be as amazing as usual.
Looking at Wall-E one may but remember robot Johnny 5 from Short Circuit :
Wall-E is probably his grandson! I should call the Sun to tell them ;-p