What is really needed is a NEW species, with a NEW enclosure - not a new enclosure for an EXISTING species, people want to see something new and exciting, but this is not really either. They did the same with the Cheetahs.
Giving an existing species a new enclosure is simply not enough, and not going to bring people through the gates. It is much better and easier to advertise a spectacular new species that people have not seen than to attract people with an animal they can already see.
Yes it is good for an existing species to be given a newer enclosure sure, but
it is not really enough these days, they need to take a good hard look at what others are doing, even some of the smaller collections are a great deal more to be progressive and dynamic than Marwell currently is.