Do you know why the suid / peccary collection was downsized ?
I guess for the general reason for the two Berlin zoos: less species for more room for the remaining ones, less to no overlap between the collections of Zoo and Tierpark.
Both Zoo and Tierpark still have a very species rich collection, but both are not longer at the level of that during my first visit in the late 1990's / early 2000's. Bit ambivalent about it. What is the use of keeping three subspecies of tiger, four subspecies of leopard, three species of zebra, etc? On one hand, I think it is better focusing on one subspecies of tiger and give them a very good enclosure instead of three subspecies in substandard enclosures. On the other hand, by showing both Siberian and Sumatran tiger or Amur and Persian leopard or Grévy and mountain zebra you can compare related (sub)species and see how different they are from each other in size and colors.