Ah, sorry for the confusion, that makes sense, although (having not seen the plans that you refer to) I cannot help but doubt that Paignton will ever be comparable to Chester again.
The fact that manatees have been becoming more common on the continent, even at zoos that are considerably smaller in both footprint and budget than some of the top British zoos (such as Randers, Faunia or Vincennes) only makes the lack of manatees in the country more painful, but I too cannot imagine this changing any time soon.