I'm not trying to derail your thread mate, I agree with your point about werebears - they are in the lore and would have been cool.
I just don't agree with your claim that werewolves were tacked on at last minute..there is no evidence to support that, as the companions questline is one of the better questlines in the game.

Cheers
There is a possibility that The Companions questline could have not involved the werewolves at all originally.
One could easily supplement the werewolf factors of the questline with other factions, creatures, aims and rewards.
But you should also consider that The Companions questline is one of the shortest, if not thee shortest guild questline in-game.
So it's not that far fetched that the guild questline could have been a quick wish-wash and some spit shine to make it sparkle.
Well at any rate I find it generally annoying that Bethesda would pick werewolves over the province's more notable lycanthrope - werebears.
I mean are they going to do this again? come Elder Scrolls VI: Hammerfell, Valenwood, Black Marsh etc. are they just going to add more werewolves?
Instead of listening to the lore we have now and actually doing the right thing. By giving us what we've heard about in the books and people's tales.
Not to say that werewolves are not in these provinces, I just think Bethesda's mindset should be: province's lycanthrope > werewolves.
Same with vampires, really. The ones we see in Skyrim are not the ones we heard about in Immortal Blood, they are merely cyrodillic vampires
which have taken a liking to the sun. Apart from name, we don't see the true Volkihar tribesmen in Skyrim. Which is a bitter disappointment.