I think it would be beneficial for everyone interested to read the official announcements from both collections if you haven't already to help clear things up a bit.
Saying goodbye to our common hippos | Whipsnade Zoo
Safari Park News | Longleat
Longleat have said:
"Lola, 21 and her son Hodor, eight, were born at Whipsnade Zoo and will be travelling to Longleat once the purpose-built complex is ready.
We have also agreed to bring in other hippos so a pod is created with the house having room to for any resulting offspring, creating a self-sustaining family group."
I think
@Skukuza's post from page 23 is also helpful to acknowledge.
My (optimistic) judgement is as follows:
-There has been an EEP recommendation for Hodor to go to Longleat (and breed with the females that move in later on), and Lola has also gone with him for companionship.
-This seems like it could also be at least partly down to ZSL seeing this exhibit as no longer best suited for the species (and a family group that would be ideal to display) and have decided it would be best to no longer house Common hippos in the enclosure (when it can only house two to three or so), as the upgrades to the housing could be costly but would not make the facilities of the same high standards that will be seen at Longleat, and are provided for other major species at Whipsnade.
-This would allow them (speculation from me here) all the time that they need to get the funds for and build a brand new top class exhibit later down the line, should they so choose to do so, and house a large natural breeding group one day.
I hope I am along the right lines here as it would be a shame for ZSL to go out of the species permanently with all the history and the space available at Whipsnade.
I found this shocking news also as the species were a big part of Whipsnade for me, but I think it's possible that there was good reasoning behind this and am looking forward to what will be moving into their enclosure.