Barty Crouch Jr/Dementor's Kiss/Zombie Attacks to Come?

[macfotuk at yahoo.com]

No: HPFGUIDX 109472

I haven't read the end of GoF in a long while, but since a recent 
post I made was about the dementor's kiss, it got me to thinking - 
what happened to Barty Crouch Jr's body? I think it was Lupin in PoA 
told Harry that the kiss is worse than death because it releases the 
soul forever (it is lost - though who knows where?)and leaves a body 
in which the blood still flows and heart still beats. Hereafter, I'll 
call this a zombie.

How long can such a body last? Is it a proper zombie? Would it need 
to eat/be fed? Can it move on its own and if not can it be possessed 
or controlled by witchcraft/wizardry? Can we expect LV to release the 
dementors in order to have an army of immortal zombies? Now this 
really WOULD be evil - (don't know if it's ESE enough to satisfy 
Kneasy though?).