The Valley Zoo does not have any short term plans to build a polar bear exhibit. They have prioritized building new enclosures for their seals/sea lions (Phase 1 of Arctic Shores) and many of their small animals (Nature's Wild backyard), along with constructing an entry complex and orientation pathway (the Wander Trail System). Once these projects are completed they will likely move onto Phase 2 of Arctic Shores. This phase of construction will bring polar bears to the Zoo.
In a previous thread about the Valley Zoo I wrote that I thought it would be most appropriate for the Zoo to concentrate first on improving the conditions for the animals they currently hold before bringing in new species. Many of the exhibits in the traditional heart of the Zoo are in the greatest need of new homes, so I am pleased to see that many of these animals will get new homes in Nature's Wild Backyard.
The plans for the new seal/sea lion exhibit look great! Both the Humboldt penguin exhibit at the Woodland Park Zoo and this pinniped exhibit were designed by Studio Hanson/Roberts. Hopefully the construction at the Valley Zoo remains true to the designs and is as well detailed and constructed as the penguin exhibit at Woodland Park Zoo. The Valley Zoo has never made a spectacular exhibit (perhaps an understatement

), but I hope that trend dramatically reverses

.
Some features of the new exhibit that I am excited about are:
The underwater floor viewing and stylized ice patterns (might create a bit of a keeper blind-spot)
A wide and welcoming visitor viewing area
The panoramic view of the exhibit and the arctic fox enclosure beyond
The lack of obtrusive visual blights in that panoramic view, except for the staircase!
A complex underwater environment created by various gunnite formations
ground squirrels, arctic fox, and pingo formations to support the main exhibit
Environmentally sustainable features