We're definitely in the middle of something of a bear revival in the UK at present, mind you

in terms of collections which have been actively going
into bear species over the past decade or so, we have had the following:
Scottish Deer Centre
(Brown Bear)
Camperdown
(Brown Bear)
Five Sisters Zoo
(Brown Bear)
Yorkshire Wildlife Park
(Brown Bear, Polar Bear)
Wild Place
(Brown Bear)
Wildwood
(Brown Bear)
Edinburgh
(Giant Panda, Sun Bear)
Wingham
(Asiatic Black)
Highland Wildlife Park
(Polar Bear)
Port Lympne
(Spectacled Bear)
Noah's Ark
(Spectacled Bear)
Chester
(Sun Bear)
Colchester
(Sun Bear)
So 15 arrivals across 13 collections - although one of these holdings (YWP Brown Bear) has admittedly recently ended.
Conversely, in the last decade only four collections have ceased to keep bears altogether:
Dudley
(death of last animal)
Dartmoor
(death of last animal)
Blair Drummond
(last animal moved to another collection)
RSCC
(closure of collection)