This is sort of what I feared their exhibit might be like, although it is larger than it appears from first look, thanks to the handy wolverine for scale. Sad nonetheless
Jurong Bird Park already has a similar enclosure to this for their Snowy Owls (http://www.zoochat.com/244/world-darkness-snowy-owls-158343/), which is too small and unsuitable. BZF is right, none of those species is really suitable for this sort of exhibit.