I expect rivers to be blood and the moon to be red. :celebration:
Rivers are bloody(Well, its was implied in the book) and the sun itself is red. I would rather see Hircine's realm than any other realm. Hircine's realm and Coldharbour has my vote!
Werebears hunt during the day with Nords, while at night, Hircine joins in and hunts with his werewolves, presumably, the pack that was seen in Bloodmoon. Sounds pretty epic.
EDIT: We only saw deep woodlands and a grassy plain and some weird cattle creature in his realm. But that's only what we saw. I would say we can expect other geographical climates such as snowy mountains and maybe jungles in Hiricne's realm. Since a large woods and savannah are different, he may have other hunting grounds to suit his hunting desire.