all sounds very exciting and I like the look of the new plans especially the seating, will be a lovely place for a picnic in the summer!
Seeing as Whipsnade have Humboldts and rockhoppers is it possible that they will do a swap so that London will have all the Humboldts (adding Macaroni and Fairy penguins) whilst Whipsnade will get the African Penguins and add to their rockhoppers by having London's rockhopper penguins?
They should put all their rockhoppers together on whatever site since they only have 1 at London and 3 at Whipsnade according to ISIS. Even a group of 4 is tiny so they would be better off getting more or moving them elsewhere, as with all penguin species breeding is more likely in bigger groups.